Thomas Hobbes

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.

I put for the general inclination of all mankind, a perpetual and restless desire of power after power, that ceaseth only in death.

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.

The secret thoughts of a man run over all things, holy, profane, clean, obscene, grave, and light, without shame or blame.

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.