What will the preachers say? .. to teach men not to persecute men: for, while a few sanctimonious humbugs are burning a few fanatics, the earth opens and swallows up all alike.
The institution of religion exists only to keep mankind in order, and to make men merit the goodness of God by their virtue. Everything in a religion which does not tend towards this goal must be considered foreign or dangerous.
I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.
Let us meet four times a year in a grand temple with music, and thank God for all his gifts. There is one sun. There is one God. Let us have one religion. Then all mankind will be brethren.
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.