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

To someone who could grasp the Universe from a unified standpoint the entire creation would appear as a unique truth and necessity.

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

In England it was enough that Newton was the greatest mathematican of his century; in France he would have been expected to be agreeable too.

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

Music that paints nothing is only noise.

Just go on..and faith will soon return.