God gave us the gift of life; it is up to us to give ourselves the gift of living well.
If you want to kill Christianity you must abolish Sunday.
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.
A yawn may not be polite, but at least it is an honest opinion.
Superstition sets the whole world in flames, but philosophy douses them.
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.