“The lesser of two evils is not the greater good.”

As quoted in Margaret Mead : Some Personal Views (1979) edited by Rhoda Métraux
As quoted in American Quotations (1992) by Gorton Carruth and Eugene H. Ehrlich
1970s
Variant: At times it may be necessary temporarily to accept a lesser evil, but one must never label a necessary evil as good.

Twitter June 11, 2016 https://twitter.com/snowden/status/741584993009438720?lang=en

Fragments of Markham's notes
The Nemesis of Faith (1849)
Context: It is alike self-contradictory and contrary to experience, that a man of two goods should choose the lesser, knowing it at the time to be the lesser. Observe, I say, at the time of action. We are complex, and therefore, in our natural state, inconsistent, beings, and the opinion of this hour need not be the opinion of the next. It may be different before the temptation appear; it may return to be different after the temptation is passed; the nearness or distance of objects may alter their relative magnitude, or appetite or passion may obscure the reflecting power, and give a temporary impulsive force to a particular side of our nature. But, uniformly, given a particular condition of a man's nature, and given a number of possible courses, his action is as necessarily determined into the course best corresponding to that condition, as a bar of steel suspended between two magnets is determined towards the most powerful. It may go reluctantly, for it will still feel the attraction of the weaker magnet, but it will still obey the strongest, and must obey. What we call knowing a man's character, is knowing how he will act in such and such conditions. The better we know him the more surely we can prophesy. If we know him perfectly, we are certain.

Source: 1930s- 1950s, The Future of Industrial Man (1942), p. 120

Source: The Last Wish

19th World Vegetarian Congress 1967

Source: Hitler 1889-1936: Hubris (1999), p. 120

Source: The Last Wish