Gentleness and peacefulness regulate our proceedings; theirs are dictated by fury. We employ reason, they accumulate faggots. They preach nothing but love, and breathe nothing but blood. Their words are humane, but their hearts are cruel.

All things must be examined, debated, investigated without exception and without regard for anyone's feelings.

Whether God exists or does not exist, He has come to rank among the most sublime and useless truths.

In general, children, like men, and men, like children, prefer entertainment to education.

There's a bit of testicle at the bottom of our most sublime feelings and our purest tenderness.

It has been said that love robs those who have it of their wit, and gives it to those who have none.

I picture the vast realm of the sciences as an immense landscape scattered with patches of dark and light. The goal towards which we must work is either to extend the boundaries of the patches of light, or to increase their number. One of these tasks falls to the creative genius; the other requires a sort of sagacity combined with perfectionism.