If this is philosophy it is at any rate a philosophy that is not in its right mind. - Georg Christoph Lichtenberg

Those who have racked their brains to discover new proofs have perhaps been induced to do so by a compulsion they could not quite explain to themselves. Instead of giving us their new proofs they should have explained to us the motivation that constrained them to search for them.

Virtue by premeditation isn't worth much.

Some people come by the name of genius in the same way that certain insects come by the name of centipede — not because they have a hundred feet, but because most people can't count above 14.