Though Nature is like unto herself in the organizing force or in her principles which are infinite, she is not so in her finite effects.

Thus you will never find in Nature two objects identically alike.

In the Natural Order two and two never make four; to do so, four exactly similar units must be had, and you know how impossible it is to find two leaves alike on the same tree, or two trees alike of the same species.

This axiom of your numeration, false in visible nature, is equally false in the invisible universe of your abstractions, where the same variance takes place in your ideas, which are the things of the visible world extended by means of their relations; so that the variations here are even more marked than elsewhere.

In fact, all being relative to the temperament, strength, habits, and customs of individuals, who never resemble each other, the smallest objects take the color of personal feelings.