Man is distinguished from all other creatures by the faculty of laughter.
The human race has one really effective weapon, and that is laughter.
Beware of too much laughter, for it deadens the mind and produces oblivion.
—L.B. Simmons in The Resurrection of Aubrey Miller
When a person can no longer laugh at himself, it is time for others to laugh at him.
The sound of laughter is like the vaulted dome of a temple of happiness.
The most wasted day of all is that on which we have not laughed.