The human race has one really effective...
- Against the assault of laughter nothing can stand. - Mark Twain
- Laughter is part of the human survival kit. - David Nathan
- Laughter is the sun that drives winter from the human face. - Victor Hugo
- Our laughter is always the laughter of a group. - Henri Bergson
- Laughter is the key to happiness, without laughter there would be no happiness in life.