Humor is a very important thing. It is a natural predilection. It is an emotional release.
A person without a sense of humor is like a wagon without springs. It's jolted by every pebble on the road.
There is no defense against adverse fortune which is so effectual as an habitual sense of humor.
HUMOR, DEFENSE AGAINST ADVERSE FORTUNE
You may not be able to change a situation, but with humor you can change your attitude about it.
The first ingredient in conversation is truth, the next good sense, the third good humor, and the fourth wit.
The sense of humor has other things to do than to make itself conspicuous in the act of laughter.
HUMOR, CONSPICUOUS IN THE ACT OF LAUGHTER