He who laughs most, learns best. Creating Emotionally Safe Schools: A Guide for Educators and Parents (2001)
A wonderful thing about true laughter is that it just destroys any kind of system of dividing people.
I'm struck by how laughter connects you with people. It's almost impossible to maintain any kind of distance or any sense of social hierarchy when you're just howling with laughter. Laughter is a force for democracy.
If I can get you to laugh with me, you like me better, which makes you more open to my ideas. And, if I can persuade you to laugh at a particular point that I make, by laughing at it you acknowledge it as true.