What a thing it is to lie there all day in the fine breeze, with the pine needles dropping on one, only to return to the hotel at night so hungry that the dinner, however homely, is a fete, and the menu finer reading than the best poetry in the world! Yet we are to leave all this for the glare and blaze of Nice and Monte Carlo; which is **proof** enough that one cannot become really acclimated to happiness.

—

“This is today’s puzzle,” he said. “If the act of denial can be taken as **proof** of the crime, how can an innocent man defend himself?” The tithingmen caught him by the arms. “Come along now, Mr. Emerson, and don’t go trying any philosophy on us.” “Oh, I wouldn’t dream of it,” said Waldo. “Philosophy would be wasted against such sturdy-headed men as you.” “Glad you know it,” said the tithingman proudly. “Wouldn’t want you thinking we weren’t true Christians.”

— Chapter 9 (Heartfire (1998))

Oh, say, can you see, by the dawn's early light,

What so proudly we hail'd at the twilight's last gleaming?

Whose broad stripes and bright stars, thro' the perilous fight,

O'er the ramparts we watch'd, were so gallantly streaming?

And the rockets' red glare, the bombs bursting in air,

Gave **proof** thro' the night that our flag was still there.

O say, does that star-spangled banner yet wave

O'er the land of the free and the home of the brave?

—

If the sewing societies, the avails of whose industry are now expended in supporting and educating young men for the ministry, were to withdraw their contributions to these objects, and give them where they are more needed, to their advancement of their own sex in useful learning, the next generation might furnish sufficient **proof**, that in intelligence and ability to master the whole circle of sciences, woman is not inferior to man.

— Letter 15 (October 20, 1837)

How nauseating in view of all this to see Fianna Fáil and the Progressive Democrats, the Taoiseach and the Tánaiste, reduce this to a game of scrabble . . . to a matter of finding the right words. We now know that Fianna Fáil ministers see nothing wrong with a Minister for Finance taking large amounts of money for personal use from business interests as long as there is no **proof** that any specific favours were done.

—

A theory can never be proven absolutely true, therefore there is no end to scientific endeavor. A true scientific theory is always open to be disproved, and the burden of **proof** is continually placed on the scientist.

— Kristine Larsen (2007).

My **proof** that homosexuality is not a choice? A question for my straight male readers: Is there anything I could do or say or write that would convince you to willingly, happily, eagerly, anxiously, deliriously, lustfully put my dick in your mouth and leave it there until I had an orgasm? I rest my case.

— p. 79 (Skipping Towards Gomorrah (2002))

To be sure, we do not have no absolute **proof** that mars is inhabited [...] Personally, I have my faith on the feeble planetary electrical disturbances which I discovered in the summer of 1899, and which according to my investigations, could not have originated from the Sun, the Moon, of Venus. Further study since has satisfied me they must have emanated from Mars. - Nikola Tesla

— Tesla recounting his experiences in 1899 with the electrical disturbances he had received.

The vast ineptitude of his pretense would be a convincing **proof** that this was no fraud.

— "The Improbable Impostor Tom Castro", in

To prove cannot mean anything other than to bring the other person to my own conviction. The truth lies only in the unification of “I” and “You.” The Other of pure thought, however, is the sensuous intellect in general. In the field of philosophy, **proof** therefore consists only in the fact that the contradiction between sensuous intellect and pure thought is disposed, so that thought is true not only for itself but also for its opposite.

— Z. Hanfi, trans., in

**proof** by analogy is fraud.

— Stroustrup, Bjarne.

**proof** of the usage of a large capital such as London, is sufficient to show that of the whole world unless it is contradicted.

— Kekeuoich, J.,

Scribitur ad narrandum, non ad probandum. It is written for
the purpose of narrative, not of **proof**.

— Of history. Institutio Oratoria,10.1.31 (translated by H E Butler, 1968).

A mathematician, then, will be defined in what follows as someone who has published the **proof** of at least one non-trivial theorem.

— Mathematics and Mathematicians (1992); published in

I am obliged to interpolate some remarks on a very difficult subject: **proof** and its importance in mathematics. All physicists, and a good many quite respectable mathematicians, are contemptuous about **proof**. I have heard Professor Eddington, for example, maintain that **proof**, as pure mathematicians understand it, is really quite uninteresting and unimportant, and that no one who is really certain that he has found something good should waste his time looking for **proof**.

— Ch. I : The Indian mathematician Ramanujan

Euclid … manages to obtain a rigorous **proof** without ever dealing with infinity, by reducing the problem [of the infinitude of primes] to the study of finite numbers. This is exactly what contemporary mathematical analysis does.

— 2.4, "Discrete Mathematics and the Notion of Infinity", p. 45

It is the simple truth that man does differ from the brutes in kind and not in degree; and the **proof** of it is here; that it sounds like a truism to say that the most primitive man drew a picture of a monkey and that it sounds like a joke to say that the most intelligent monkey drew a picture of a man. Something of division and disproportion has appeared; and it is unique. Art is the signature of man.

— Ch. 1: The Man in the Cave

For those who want some **proof** that physicists are human, the **proof** is in the idiocy of all the different units which they use for measuring energy .

— chapter 3, “The Great Conservation Principles,” p. 75

Perhaps no philosopher is more correct than the cynic. The happiness of the animal, that thorough cynic, is the living **proof** of cynicism.

— § 2.1, cited in Peter Sloterdijk,

They do not ill, being lords of ours, to slay Me; nay, they could not spare: but thee to slay, To spill thy strong young life for truth to me, In all men's eyes would mark them monstrous:;: thou Must live, and serve my slayers, and serving them Sustain my memory by the **proof** if God Shall give thee grace to prove it that thy name, Thy father's name and mine, in true men's ears Rings truth, and means not treason.

— Faliero, Act V. Sc. 3.

If the man who turnips cries, Cry not when his father dies, 'Tis a **proof** that he had rather Have a turnip than his father.

— Samuel Johnson, ridiculing Lope de Vega's lines, "Se acquien los leones vence," etc.

With impressive **proof** on all sides of magnificent progress, no one can rightly deny the fundamental correctness of our economic system.

— Herbert Hoover in:

Dividing by zero...allows you to prove, mathematically, anything in the universe. You can prove that 1+1=42, and from there you can prove that J. Edgar Hoover is a space alien, that William Shakespeare came from Uzbekistan, or even that the sky is polka-dotted. (See appendix A for a **proof** that Winston Churchill was a carrot.)

— Charles Seife,

There is object **proof** that homosexuality is more interesting than heterosexuality. It's that one knows a considerable number of heterosexuals who would wish to become homosexuals, whereas one knows very few homosexuals who would really like to become heterosexuals.

— Michel Foucault, quoted in Aldrich, Robert and Wotherspoon, Gary (Eds.) (2001).

Silence is a door among the doors of wisdom - indeed, silence begets and attracts love, it is the **proof** of all the beneficiences.

— Majlisi,

What characterizes philosophy is this "step back" from actuality into possibility the attitude best rendered by Adorno 's and Horkheimer's motto quoted by Fredric Jameson: "Not Italy itself is given here, but the **proof** that it exists."

—

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