A work of morality, politics, criticism will be more elegant, other things being equal, if it is shaped by the hand of geometry.

A man finds no sweeter voice in all the world than that which chants his praise.

Modesty in women has two special advantages,--it enhances beauty and veils uncomeliness.

A well-cultivated mind is, so to speak, made up of all the minds of preceding ages; it is only one single mind which has been educated during all this time.

I feel nothing, apart from a certain difficulty in continuing to exist.

The Art of Flying is but newly invented, twill improve by degrees, and in time grow perfect; then we may fly as far as the Moon.

Leibniz never married; he had considered it at the age of fifty; but the person he had in mind asked for time to reflect. This gave Leibniz time to reflect, too, and so he never married.