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

The monad, of which we shall speak here, is nothing but a simple substance which enters into compounds; simple, that is to say, without parts.

The present is big with the future, the future might be read in the past, the distant is expressed in the near.

Now this connection or adaption of all created things with each, and of each with all the rest, means that each simple substance has relations which express all the others, and that consequently it is a perpetual living mirror of the universe.

I hold that it is only when we can prove everything we assert that we understand perfectly the thing under consideration.

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

Why is there anything at all rather than nothing whatsoever?