No skill or art is needed to grow old; the trick is to endure it.

Freedom consists not in refusing to recognize anything above us, but in respecting something which is above us; for by respecting it, we raise ourselves to it, and, by our very acknowledgment, prove that we bear within ourselves what is higher, and are worthy to be on a level with it.

Die Mathematiker sind eine Art Franzosen. Spricht man zu ihnen, so übersetzen sie alles in ihre eigene Sprache, und so wird es alsobald etwas ganz anderes. Mathematicians are a kind of Frenchmen. Whenever you say anything or talk to them, they translate it into their own language, and right away it is something completely different.

If ever the Divine appeared on earth, it was in the person of Christ.

What I possess I would gladly retain. Change amuses the mind, yet scarcely profits.

People will allow their faults to be shown them; they will let themselves be punished for them; they will patiently endure many things because of them; they only become impatient when they have to lay them aside.

Time is a strange thing. It is a whimsical tyrant, which in every century has a different face for all that one says and does.