Wise sayings (and dicta) know, sardonic maxims ask why we think we know. The former presume, and the latter doubt, both the possibility and the value of wisdom or knowledge. Sardonic maxims concern vanity in both senses of the word: futility and excessive self-regard. Their sense of the former makes them suspicious of effort and their sense of the latter of judgment.
…For the sardonic maximist, zeal — of religious fanatics, or political parties, of adherents of a theory or proponents of an ideology — constitutes the greatest, and most dangerous, folly.
…The maximist speaks from experience, which counts more than reasoning or theory, and has evidently had plenty. We sense him as old, though not very old. He has lived through what surprises younger people and has reflected upon it. Having moved among the urbane and sophisticated, he knows his conclusions have been tested by demanding judges. In this sense, the maximist is aristocratic, as well as world-weary. He speaks out of what one commentator has called “cool disdain.” The maximist expects his readers to be as old and sophisticated as himself, and to recognize from experience, rather than proof or argument, the truth of what he says. If they don’t, no argument will substitute.
…It takes self-control, as deft as the maximist’s control over language, to remain alone as a mere observer. “In France,” writes La Bruyère, “it takes much firmness of spirit and a great breadth of understanding to do without offices and positions, and be willing to stay alone and do nothing.”
— Gary Saul Morson, The Long and Short of It: From Aphorism to Novel




