There are only two kinds of certain knowledge: Awareness of our own existence and the truths of mathematics.

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

There are only two kinds of certain knowledge: Awareness of our own existence and the truths of mathematics.

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

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

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

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