Which existed prior to heaven and earth.
Existing by itself, unchanging;
Pervading everywhere, inexhaustible.
It might be called the mother of the world.
Its name is unknown,
I simply call it Tao.
If I were to exert myself to define it,
I might call it great.
Great means extending to the limitless.
Extending to the limitless means reaching the extreme distance.
Reaching the extreme distance means returning to "nearness."
Thus Tao is great.
Heaven is great, earth is great, and man is great, too.
In the universe we have four greatnesses and man is but one.
Man is in accordance with earth.
Earth is in accordance with heaven.
Heaven is in accordance with Tao.
Tao is in accordance with that which is.
Translated by Chang Chung-yuan, 1975.