Every present state of a simple substance is the natural consequence of its preceding state, in such a way that its present is big with its future.

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.

We live in the best of all possible worlds

There is nothing waste, nothing sterile, nothing dead in the universe; no chaos, no confusions, save in appearance.

To love is to take delight in happiness of another, or, what amounts to the same thing, it is to account another's happiness as one's own.

Thus God alone is the primary Unity, or original simple substance, from which all monads, created and derived, are produced.

Indeed in general I hold that there is nothing truer than happiness, and nothing happier and sweeter than truth.