Humor is a power not possessed by everyone. The one who has it always brings half the entertainment along with him.
Humor is a plague that would have softened down the hoar austerity of pharaoh's heart and persuaded him to dismiss israel with his best wishes, cat-quick.
Humor is a filter that offers a way of coping in the short term with almost anything... but it has no long term effect and requires constant, endless renewal.
Humor is (or rather a sense of humor is) the same thing as common sense, but moving at a different speed.
Humor is a sad phenomenon when made professional. Professional humor forces this ambiguous, difficult-to-define thing called humor artificially into a necessity.
Humor is a saving thing: For the minute it crops up, all our hardnesses yield, all our irritations, and resentments flit away, and a sunny spirit takes their place.
Humor is a twisted logic whereby, in contrast to traditional logic, whereby something is a or not a, n humor, it's both a and not a.