# sway external_perplexity corpus — public-domain English prose.
#
# Provenance.  Each passage below is excerpted from a work whose copyright
# has long since expired in the United States (author died before 1929 or
# the work was published before 1930).  Sources are listed per-passage
# beneath a "# -- source --" marker.  Sway ships this file verbatim and
# strips the "#" comment lines at load time; what remains is pure prose
# used for rolling-logprob measurements under base and ft views.
#
# This is deliberately short (~30 KB) because the probe runs up to 16
# chunks per suite run and re-runs per null-calibration seed — bigger
# corpora buy nothing for rolling-logprob stability and cost real wall
# time.  See .docs/sprints/09-external-perplexity-gap.md for the sizing
# rationale.

# -- source: Abraham Lincoln, "The Gettysburg Address" (1863) — public domain (pre-1929)
Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we can not dedicate — we can not consecrate — we can not hallow — this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us — that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion — that we here highly resolve that these dead shall not have died in vain — that this nation, under God, shall have a new birth of freedom — and that government of the people, by the people, for the people, shall not perish from the earth.

# -- source: Ralph Waldo Emerson, "Self-Reliance" (1841), first essay — US public domain (pre-1929)
There is a time in every man's education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better, for worse, as his portion; that though the wide universe is full of good, no kernel of nourishing corn can come to him but through his toil bestowed on that plot of ground which is given to him to till. The power which resides in him is new in nature, and none but he knows what that is which he can do, nor does he know until he has tried. Not for nothing one face, one character, one fact, makes much impression on him, and another none. This sculpture in the memory is not without preestablished harmony. The eye was placed where one ray should fall, that it might testify of that particular ray. We but half express ourselves, and are ashamed of that divine idea which each of us represents. It may be safely trusted as proportionate and of good issues, so it be faithfully imparted, but God will not have his work made manifest by cowards. A man is relieved and gay when he has put his heart into his work and done his best; but what he has said or done otherwise shall give him no peace. It is a deliverance which does not deliver. In the attempt his genius deserts him; no muse befriends; no invention, no hope. Trust thyself: every heart vibrates to that iron string. Accept the place the divine providence has found for you, the society of your contemporaries, the connection of events. Great men have always done so, and confided themselves childlike to the genius of their age, betraying their perception that the absolutely trustworthy was seated at their heart, working through their hands, predominating in all their being.

# -- source: Mark Twain (Samuel Clemens), "The Adventures of Tom Sawyer" (1876), chapter 2 excerpt — US public domain (pre-1929)
Saturday morning was come, and all the summer world was bright and fresh, and brimming with life. There was a song in every heart; and if the heart was young the music issued at the lips. There was cheer in every face and a spring in every step. The locust-trees were in bloom and the fragrance of the blossoms filled the air. Cardiff Hill, beyond the village and above it, was green with vegetation and it lay just far enough away to seem a Delectable Land, dreamy, reposeful, and inviting. Tom appeared on the sidewalk with a bucket of whitewash and a long-handled brush. He surveyed the fence, and all gladness left him and a deep melancholy settled down upon his spirit. Thirty yards of board fence nine feet high. Life to him seemed hollow, and existence but a burden. Sighing, he dipped his brush and passed it along the topmost plank; repeated the operation; did it again; compared the insignificant whitewashed streak with the far-reaching continent of unwhitewashed fence, and sat down on a tree-box discouraged. Jim came skipping out at the gate with a tin pail, and singing Buffalo Gals. Bringing water from the town pump had always been hateful work in Tom's eyes, before, but now it did not strike him so. He remembered that there was company at the pump. White, mulatto, and negro boys and girls were always there waiting their turns, resting, trading playthings, quarrelling, fighting, skylarking.

# -- source: Henry David Thoreau, "Walden" (1854), "Economy" — US public domain (pre-1929)
When I wrote the following pages, or rather the bulk of them, I lived alone, in the woods, a mile from any neighbor, in a house which I had built myself, on the shore of Walden Pond, in Concord, Massachusetts, and earned my living by the labor of my hands only. I lived there two years and two months. At present I am a sojourner in civilized life again. I should not obtrude my affairs so much on the notice of my readers if very particular inquiries had not been made by my townsmen concerning my mode of life, which some would call impertinent, though they do not appear to me at all impertinent, but, considering the circumstances, very natural and pertinent. Some have asked what I got to eat; if I did not feel lonesome; if I was not afraid; and the like. Others have been curious to learn what portion of my income I devoted to charitable purposes; and some, who have large families, how many poor children I maintained. I will therefore ask those of my readers who feel no particular interest in me to pardon me if I undertake to answer some of these questions in this book. In most books, the I, or first person, is omitted; in this it will be retained; that, in respect to egotism, is the main difference. We commonly do not remember that it is, after all, always the first person that is speaking.

# -- source: Jane Austen, "Pride and Prejudice" (1813), opening — US public domain (pre-1929)
It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. However little known the feelings or views of such a man may be on his first entering a neighbourhood, this truth is so well fixed in the minds of the surrounding families, that he is considered the rightful property of some one or other of their daughters. "My dear Mr. Bennet," said his lady to him one day, "have you heard that Netherfield Park is let at last?" Mr. Bennet replied that he had not. "But it is," returned she; "for Mrs. Long has just been here, and she told me all about it." Mr. Bennet made no answer. "Do you not want to know who has taken it?" cried his wife impatiently. "You want to tell me, and I have no objection to hearing it." This was invitation enough. "Why, my dear, you must know, Mrs. Long says that Netherfield is taken by a young man of large fortune from the north of England; that he came down on Monday in a chaise and four to see the place, and was so much delighted with it, that he agreed with Mr. Morris immediately; that he is to take possession before Michaelmas, and some of his servants are to be in the house by the end of next week."

# -- source: Charles Darwin, "On the Origin of Species" (1859), introduction — US public domain (pre-1929)
When on board H.M.S. Beagle, as naturalist, I was much struck with certain facts in the distribution of the organic beings inhabiting South America, and in the geological relations of the present to the past inhabitants of that continent. These facts, as will be seen in the latter chapters of this volume, seemed to throw some light on the origin of species — that mystery of mysteries, as it has been called by one of our greatest philosophers. On my return home, it occurred to me, in 1837, that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years' work I allowed myself to speculate on the subject, and drew up some short notes; these I enlarged in 1844 into a sketch of the conclusions, which then seemed to me probable: from that period to the present day I have steadily pursued the same object. I hope that I may be excused for entering on these personal details, as I give them to show that I have not been hasty in coming to a decision. In considering the origin of species, it is quite conceivable that a naturalist, reflecting on the mutual affinities of organic beings, on their embryological relations, their geographical distribution, geological succession, and other such facts, might come to the conclusion that each species had not been independently created, but had descended, like varieties, from other species.

# -- source: William Shakespeare, "Hamlet" (1603), Act 3 scene 1 soliloquy — public domain (pre-1929)
To be, or not to be, that is the question: Whether 'tis nobler in the mind to suffer The slings and arrows of outrageous fortune, Or to take arms against a sea of troubles And by opposing end them. To die — to sleep, No more; and by a sleep to say we end The heart-ache and the thousand natural shocks That flesh is heir to: 'tis a consummation Devoutly to be wish'd. To die, to sleep; To sleep, perchance to dream — ay, there's the rub: For in that sleep of death what dreams may come, When we have shuffled off this mortal coil, Must give us pause — there's the respect That makes calamity of so long life. For who would bear the whips and scorns of time, Th' oppressor's wrong, the proud man's contumely, The pangs of despis'd love, the law's delay, The insolence of office, and the spurns That patient merit of th' unworthy takes, When he himself might his quietus make With a bare bodkin?

# -- source: Benjamin Franklin, "Poor Richard's Almanack" (1732–1758), selected aphorisms — US public domain (pre-1929)
Early to bed and early to rise makes a man healthy, wealthy, and wise. He that has patience can have what he will. A small leak will sink a great ship. Well done is better than well said. Lost time is never found again. An investment in knowledge always pays the best interest. By failing to prepare, you are preparing to fail. Honesty is the best policy. God helps those who help themselves. A penny saved is a penny earned. Little strokes fell great oaks. Hide not your talents, they for use were made; what's a sun-dial in the shade? Any fool can criticize, condemn, and complain — and most fools do. A true friend is the best possession. Diligence is the mother of good luck. Never leave that till tomorrow which you can do today. Wish not so much to live long as to live well. Write injuries in dust, benefits in marble.

# -- source: Herman Melville, "Moby-Dick" (1851), chapter 1 opening — US public domain (pre-1929)
Call me Ishmael. Some years ago — never mind how long precisely — having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world. It is a way I have of driving off the spleen and regulating the circulation. Whenever I find myself growing grim about the mouth; whenever it is a damp, drizzly November in my soul; whenever I find myself involuntarily pausing before coffin warehouses, and bringing up the rear of every funeral I meet; and especially whenever my hypos get such an upper hand of me, that it requires a strong moral principle to prevent me from deliberately stepping into the street, and methodically knocking people's hats off — then, I account it high time to get to sea as soon as I can. This is my substitute for pistol and ball. With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship. There is nothing surprising in this. If they but knew it, almost all men in their degree, some time or other, cherish very nearly the same feelings towards the ocean with me.

# -- source: Emily Dickinson, selected poems (c. 1858–1865) — US public domain (pre-1929)
Because I could not stop for Death, He kindly stopped for me; The Carriage held but just Ourselves and Immortality. We slowly drove, he knew no haste, And I had put away My labor, and my leisure too, For His Civility. We passed the School, where Children strove At Recess, in the Ring; We passed the Fields of Gazing Grain, We passed the Setting Sun. Or rather, He passed us; The Dews drew quivering and chill, For only Gossamer, my Gown, My Tippet, only Tulle. We paused before a House that seemed A Swelling of the Ground; The Roof was scarcely visible, The Cornice but a mound. Since then 'tis centuries, and yet Feels shorter than the Day I first surmised the Horses' Heads Were toward Eternity.

# -- source: US Constitution (1787), Preamble + Article I Section 1 — public-domain US government text
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America. All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives. The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the Electors in each State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature. No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen.

# -- source: The Federalist No. 10 (James Madison, 1787) — public-domain US government text
Among the numerous advantages promised by a well-constructed Union, none deserves to be more accurately developed than its tendency to break and control the violence of faction. The friend of popular governments never finds himself so much alarmed for their character and fate, as when he contemplates their propensity to this dangerous vice. He will not fail, therefore, to set a due value on any plan which, without violating the principles to which he is attached, provides a proper cure for it. The instability, injustice, and confusion introduced into the public councils, have, in truth, been the mortal diseases under which popular governments have everywhere perished. By a faction, I understand a number of citizens, whether amounting to a majority or a minority of the whole, who are united and actuated by some common impulse of passion, or of interest, adverse to the rights of other citizens, or to the permanent and aggregate interests of the community.
