The Moral Law

The moral law is to be found everywhere, and yet it is a secret.
The simple intelligence of ordinary men and women of the people may understand something of the moral law; but in its utmost reaches there is something which even the wisest and holiest men cannot understand. The ignoble natures of ordinary men and women of the people may be able to carry out the moral law; but in its utmost reaches even the wisest and holiest of men cannot live up to it.
Great as the Universe is, man is yet not always satisfied with it. For there is nothing so great but the mind of the moral man can conceive of something still greater which nothing in the world can hold. There is nothing so small but the mind of the moral man can conceive of something still smaller which nothing in the world can split.
The Book of Songs says,
The hawk soars to the heavens above Fishes dive to the depths below.
That is to say, there is no place in the highest heavens above nor in the deepest waters below where the moral law is not to be found. The moral man finds the moral law beginning in the relation between man and woman; but ending in the vast reaches of the universe.

Confucianism
Doctrine of the Mean

Wilson, Andrew, editor. World Scripture - a Comparative Anthology of Sacred Texts. Paragon House, 1991, p. 101 [Doctrine of the Mean 12]