"Philosophy consists mostly of kicking up a lot of dust and then complaining that you can't see anything."

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

"The monads are inextinguishable and indestructible."

"There are never in nature two beings, which are precisely alike, and in which it is not possible to find some difference which is internal, or based on some intrinsic quality."

"The universe is an immense ocean of monads."