“The battle between Good and Evil is a theme of much of fantasy. But I think the battle between Good and Evil is fought largely within the individual human heart, by the decisions that we make. It’s not like evil dresses up in black clothing and you know, they’re really ugly. These are some of the things that Tolkien did; he made them work fabulously, but in the hands of his imitators, they become total clichés. I mean the orc-like creatures who always do dress in black and… they’re really ugly and they’ve got facial deformities or something. You can tell that if somebody’s ugly, he must be evil. And then Tolkien’s heroes are all very attractive people and all that, of course, again this became cliché in the hands of the Tolkien imitators.”

AssignmentX interview (June 2011) http://www.assignmentx.com/2011/interview-game-of-thrones-creator-george-r-r-martin-on-the-future-of-the-franchise-part-2/

Source: Sons of Entropy

The Measures of Man (1959)
1950s

Source: Why Men Are the Way They Are (1988), p. 73.

On the oddest experience while at a party, reported in WENN staff (December 6, 2007) "The Things They Say", World Entertainment News Network.

Other

infinity plus interview (2001)
Variant: In real life, the hardest aspect of the battle between good and evil is determining which is which.
Context: The battle between good and evil is a legitimate theme for a Fantasy (or for any work of fiction, for that matter), but in real life that battle is fought chiefly in the individual human heart. Too many contemporary Fantasies take the easy way out by externalizing the struggle, so the heroic protagonists need only smite the evil minions of the dark power to win the day. And you can tell the evil minions, because they're inevitably ugly and they all wear black.
I wanted to stand much of that on its head.
In real life, the hardest aspect of the battle between good and evil is determining which is which.

Source: The Mark of Athena