God makes nothing without order, and everything that forms itself develops imperceptibly out of small parts.

Whence it follows that God is absolutely perfect, since perfection is nothing but magnitude of positive reality, in the strict sense, setting aside the limits or bounds in things which are limited.

We should like Nature to go no further; we should like it to be finite, like our mind; but this is to ignore the greatness and majesty of the Author of things.

There is nothing without reason.

There is no way in which a simple substance could begin in the course of nature, since it cannot be formed by means of compounding.

What is is what must be.

The present is saturated with the past and pregnant with the future.