All passions exaggerate; and they are passions only because they do exaggerate.
Do not suppose opportunity will knock twice at your door.
It is passion that makes man live; wisdom makes one only last.
Your intelligence often bears the same relation to your heart as the library of a chateau does to its owner.
Every day I add to the list of things I refuse to discuss. The wiser the man, the longer the list.
What one knows best is ... what one has learned not from books but as a result of books, through the reflections to which they have given rise.