A smile is the universal welcome.
Humor is the instinct for taking pain playfully.
It is the ability to take a joke, not make one, that proves you have a sense of humor.
There is something self-defeating in the too-conscious pursuit of pleasure.
Dogs laugh, but they laugh with their tails.
A joke is not a thing but a process, a trick you play on the listener's mind. You start him off toward a plausible goal, and then by a sudden twist you land him nowhere at all or just where he didn't expect to go.
Humour is the instinct for taking pain playfully.
People who demand neutrality in any situation are usually not neutral but in favor of the status quo.