Passed along by my wise friend Steve:
"A person without a sense of humor is like a wagon without springs -- jolted by every pebble in the road."
Henry Ward Beecher
"There is a thin line that separates laughter and pain, comedy and tragedy, humor and hurt. And how do you know laughter if there is no pain to compare it with?"
"Humor is but another weapon against the universe."
"Humor does not rescue us from unhappiness, but enables us to move back from it a little."
"First I was an idealist (that was early -- fools are born, not made...); next I was a realist; now I am a pessimist, and, by Jove! if things get much worse I'll become a humorist."
"A humorist is a man who feels bad but feels good about it."
"Humor is a rubber sword -- it allows you to make a point without drawing blood."
"Humor is laughing at what you haven't got when you ought to have it."
"I can imagine no more comfortable frame of mind for the conduct of life than a humorous resignation."
W. Somerset Maugham
"Humor is perhaps a sense of intellectual perspective: an awareness that some things are really important, others not; and that the two kinds are most oddly jumbled in everyday affairs."
"My method is to take the utmost trouble to find the right thing to say, and then to say it with the utmost levity."
George Bernard Shaw
"A well-developed sense of humor is the pole that adds balance to your step as you walk the tightrope of life."
William Arthur Ward