The husband who decides to surprise his wife is often very much surprised himself.
The right of commanding is no longer an advantage transmitted by nature; like an inheritance, it is the fruit of labors, the price of courage.
The superfluous, a very necessary thing.
There is an astonishing imagination, even in the science of mathematics.
When we cannot use the compass of mathematics or the torch of experience...it is certain we cannot take a single step forward.
Each player must accept the cards life deals him or her: but once they are in hand, he or she alone must decide how to play the cards in order to win the game.