One is rarely an impulsive innovator after the age of sixty, but one can still be a very fine orderly and inventive thinker. One rarely procreates children at that age, but one is all the more skilled at educating those who have already been procreated, and education is procreation of another kind.

The thoughts written on the walls of madhouses by their inmates might be worth publicizing.

The most dangerous untruths are truths slightly distorted.

A schoolteacher or professor cannot educate individuals, he educates only species.

Food probably has a very great influence on the condition of men. Wine exercises a more visible influence, food does it more slowly but perhaps just as surely. Who knows if a well-prepared soup was not responsible for the pneumatic pump or a poor one for a war?

After all, is our idea of God anything more than personified incomprehensibility?

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.