Natural religion itself, seems to decay very much. Many will have human souls to be material: others make God himself a corporeal being.

Imaginary numbers are a fine and wonderful refuge of the divine spirit almost an amphibian between being and non-being.

To love is to find pleasure in the happiness of others.

The greatness of a life can only be estimated by the multitude of its actions. We should not count the years, it is our actions which constitute our life.

But in simple substances the influence of one monad over another is ideal only.

I have said more than once, that I hold space to be something purely relative, as time; an order of coexistences, as time is an order of successions.

I do not conceive of any reality at all as without genuine unity.