The opportunity for doing mischief is found a hundred times a day, and of doing good once in a year.

Society therefore is an ancient as the world.

Everything I see about me is sowing the seeds of a revolution that is inevitable, though I shall not have the pleasure of seeing it. The lightning is so close at hand that it will strike at the first chance, and then there will be a pretty uproar. The young are fortunate, for they will see fine things.

I believe that there never was a creator of a philosophical system who did not confess at the end of his life that he had wasted his time. It must be admitted that the inventors of the mechanical arts have been much more useful to men that the inventors of syllogisms. He who imagined a ship towers considerably above him who imagined innate ideas.

Paradise is where I am

It is dangerous to be right in matters where established men are wrong.

What is toleration? It is the prerogative of humanity. We are all steeped in weaknesses and errors: Let us forgive one another's follies, it is the first law of nature.