The key to all sciences is unquestionably the question mark. To the word How? we owe most of our greatest discoveries. Wisdom in life may perhaps consist in asking ourselves on all occasions: Why?

I'm a great poet. I don't put my poems on paper: they consist of actions and feelings.

Marriage must fight constantly against a monster which devours everything: routine.

In a husband, there is only a man; in a married woman, there is a man, a father, a mother and a woman.

Power does not consist in striking with force or with frequency, but in striking true.

Love which economizes is never true love.

Glory and fame mean twelve thousand francs' worth of paid articles in the newspapers and five thousand crowns' worth of dinners.