" Laughter is the only free emotion - the only one that can't be compelled. We can be made to fear. We can even be made to believe we're in love because, if we're kept dependent and isolated for long enough, we bond in order to survive. But laughter explodes like an aha! It comes when the punch line changes everything that has gone before, when two opposites collide and make a third and when we suddenly see a new reality...laughter is an orgasm of the mind. "

― Gloria Steinem , My Life on the Road