The Basis of Morality by Part 3 Chapter 6 Page 13

But if any one should suppose such a soil too barren and meagre to bear this great cardinal virtue, let him reflect on what is said above, and remember how small is the amount of true, spontaneous, unselfish, unfeigned justice among men; how the real thing only occurs as a surprising exception, and how, to its counterfeit, — the justice that rests on mere worldly wisdom and is everywhere published abroad — it is related, both in quality and quantity, as gold is to copper.

I should like to call the one d??a??s??? p??d?�?? (common, ordinary justice), the other ???a??a (heavenly justice). For the latter is she, who, according to Hesiod, leaves the earth in the iron age, to dwell with the celestial gods. To produce such a rare exotic as this the root we have indicated is surely vigorous enough.