“UNFAIR Term applied to advantages enjoyed by other people which we tried to cheat them out of and didn’t manage.”

Part III, p. 98.
The Autobiography (1818)

Source: 1990s and later, Managing for the Future: The 1990's and Beyond (1992), p. 139

Les liens entre un être et nous n'existent que dans notre pensée. La mémoire en s'affaiblissant les relâche, et, malgré l'illusion dont nous voudrions être dupes et dont, par amour, par amitié, par politesse, par respect humain, par devoir, nous dupons les autres, nous existons seuls. L'homme est l'être qui ne peut sortir de soi, qui ne connaît les autres qu'en soi, et, en disant le contraire, ment.
Source: In Search of Lost Time, Remembrance of Things Past (1913-1927), Vol. VI: The Sweet Cheat Gone (1925), Ch. I: "Grief and Oblivion"

Source: The Color of Magic

Source: 1970s, Social Psychology of Organizing, (1979), p. 148

Source: Life and Adventures of Peter Porcupine (1796), P. 59.

Source: How to Win Friends & Influence People

"Definition of a Gentleman" http://xroads.virginia.edu/~CAP/LEE/gentdef.html, a memorandum found in his papers after his death, as quoted in Lee the American (1912) by Gamaliel Bradford, p. 233
Context: The forbearing use of power does not only form a touchstone, but the manner in which an individual enjoys certain advantages over others is a test of a true gentleman.
The power which the strong have over the weak, the employer over the employed, the educated over the unlettered, the experienced over the confiding, even the clever over the silly — the forbearing or inoffensive use of all this power or authority, or a total abstinence from it when the case admits it, will show the gentleman in a plain light.
The gentleman does not needlessly and unnecessarily remind an offender of a wrong he may have committed against him. He cannot only forgive, he can forget; and he strives for that nobleness of self and mildness of character which imparts sufficient strength to let the past be but the past. A true man of honor feels humbled himself when he cannot help humbling others.