“Jealousy is the cause of erosion of good deeds, as well as the attracter of chastisement.”

1910s, Androcles and the Lion (1913)

Pt. V, st. 30
The Ballad of Reading Gaol (1898)
Context: The vilest deeds like poison weeds
Bloom well in prison-air:
It is only what is good in Man
That wastes and withers there:
Pale Anguish keeps the heavy gate,
And the Warder is Despair.

τί λοιπὸν ἢ ἀπολαύειν τοῦ ζῆν συνάπτοντα ἄλλο ἐπ ἄλλῳ ἀγαθόν, ὥστε μηδὲ τὸ βραχύτατον διάστημα ἀπολείπειν;
XII, 29
Meditations (c. 121–180 AD), Book XII

The Third Revelation, Chapter 11
Context: It is easy to understand that the best deed is well done: and so well as the best deed is done — the highest — so well is the least deed done; and all thing in its property and in the order that our Lord hath ordained it to from without beginning. For there is no doer but He.
I saw full surely that he changeth never His purpose in no manner of thing, nor never shall, without end. For there was no thing unknown to Him in His rightful ordinance from without beginning. And therefore all-thing was set in order ere anything was made, as it should stand without end; and no manner of thing shall fail of that point.

Speech to Conservative Central Council ("The Historic Choice") (20 March 1976) http://www.margaretthatcher.org/document/102990
Leader of the Opposition
Context: Every step this Socialist Government takes to seize more power over our daily lives diminishes those lives and the freedom which is their essence and their strength. One of our principal and continuing priorities when we are returned to office will be to restore the freedoms which the Socialists have usurped. Let them learn that it is not a function of the State to possess as much as possible. It is not a function of the State to grab as much as it can get away with. It is not a function of the State to act as ring-master, to crack the whip, dictate the load which all of us must carry or say how high we may climb. It is not a function of the State to ensure that no-one climbs higher than anyone else. All that is the philosophy of Socialism. We reject it utterly for, however well-intended, it leads in one direction only: to the erosion and finally the destruction of the democratic way of life.

Source: Wuthering Heights