Thomas Hobbes

Science is the knowledge of consequences, and dependence of one fact upon another.

Such is the nature of men, that howsoever they may acknowledge many others to be more witty, or more eloquent, or more learned; yet they will hardly believe there be many so wise as themselves.

In the state of nature profit is the measure of right.

The right of nature... is the liberty each man hath to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

War consisteth not in battle only, or the act of fighting; but in a tract of time, wherein the will to contend by battle is sufficiently known.

During the time men live without a common power to keep them all in awe, they are in that conditions called war; and such a war, as if of every man, against every man.

When all the world is overcharged with inhabitants, then the last remedy of all is war, which provideth for every man, by victory or death.

The condition of man... is a condition of war of everyone against everyone.

Understanding is nothing else than conception caused by speech.

Curiosity is a lust of the mind.

If I had read as much as other men I should have known no more than they.

Passions unguided are for the most part mere madness.

Leisure is the mother of philosophy.

Appetite with an opinion of attaining is called hope the same without such opinion despair.

Faith is a gift of God which man can neither give nor take away by promise of rewards or menaces of torture.

Now I am about to take my last voyage a great leap in the dark.

Give an inch he'll take an ell.

Therefor I doubt not but, if it had been a thing contrary to any man__ right of dominion, or to the interest of men that have dominion, __hat the three angles of a triangle should be equal to two angles of a square,_ that doctrine should have been, if not disputed, yet by the burning of all books of geometry suppressed, as far as he whom it concerned was able.