It is not more surprising to be born twice than once; everything in nature is resurrection.

I know of no great men except those who have rendered great service to the human race.

When we cannot use the compass of mathematics or the torch of experience...it is certain we cannot take a single step forward.

History is the lie commonly agreed upon.

Je ne suis pas d'accord avec ce que vous dites, mais je d‚fendrai jusqu'... la mort le droit que vous avez de le dire/ I do not agree with what you have to say, but I'll defend to the death your right to say it

Every sensible man, every honest man, must hold the Christian sect in horror. But what shall we substitute in its place? you say. What? A ferocious animal has sucked the blood of my relatives. I tell you to rid yourselves of this beast, and you ask me what you shall put in its place ?

Discord is the great ill of mankind; and tolerance is the only remedy for it.