A philosopher is a fool who torments himself while he is alive, to be talked of after he is dead.

Algebra is generous; she often gives more than is asked of her.

Push on and faith will catch up with you.

The true system of the World has been recognized, developed and perfected...Everything has been discussed and analysed, or at least mentioned.

Just go on . . . and faith will soon return. To a friend hesitant with respect to infinitesimals.

Gaming is the destruction of all decorum; the prince forgets at it his dignity, and the lady her modesty.

High office, is like a pyramid; only two kinds of animals reach the summit — reptiles and eagles.