Liberty of speech invites and provokes liberty to be used again, and so bringeth much to a man's knowledge.

I should have been, I don't know, a con-man, a robber or a prostitute. But it was vanity that made me choose painting, vanity and chance.

In mathematics I can report no deficiency, except it be that men do not sufficiently understand the excellent use of Pure Mathematics.

Books must follow sciences, and not sciences books.

Base and crafty cowards are like the arrow that flieth in the dark.

A lie faces God and shrinks from man.

But the images of men's wits and knowledges remain in books, exempted from the wrong of time, and capable of perpetual renovation.