All I ever needed to know, I learned in Kindergarten

Most of what I really need to know about how to live, and what to do, and
how to be, I learned in kindergarten. Wisdom was not at the top of the
graduate school mountain, but there in the sand box at nursery school.

These are the things I learned: Share everything. Play fair. Don't hit
people. Put things back where you found them. Clean up your own mess. Don't
take things that aren't yours. Say you are sorry when you hurt somebody.
Wash your hands before you eat. Flush. Warm cookies and cold milk are good
for you. Live a balanced life. Learn some and think some and draw some and
paint and sing and dance and play and work everyday.

Take a nap every afternoon. When you go out in the world, watch for traffic,
hold hands, and stick together. Be aware of wonder. Remember the little seed
in the plastic cup? The roots go down and the plant goes up and nobody
really knows how or why. We are like that.

Think of what a better world it would be if we all, the whole world, had
cookies and milk about 3 o'clock every afternoon and then lay down with our
blankets for a nap. Or we had a basic policy in our nation and other nations
to always put things back where we found them and clean up our own messes.
And it is still true, no matter how old you are, when you go out in the
world, it is best to hold hands and stick together.

--- Robert Fulghum