All I really need to know I learned in kindergarten. These are the things I learned:
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're sorry when you hurt somebody.
Wash your hands before you eat.
Warm cookies and cold milk are good for you.
Live a balanced life - learn some and think some and draw and paint and sing and dance and play and work every day some.
Take a nap every afternoon.
When you go out into the world, watch out for traffic, hold hands, and stick together.
Be aware of wonder.
Take any of those items and extrapolate it into sophisticated adult terms and apply it to your family life or your work or your government or your world and it holds true and clear and firm. Think what a better world it would be if we all - the whole world - had cookies and milk about three o'clock every afternoon and then lay down with our blankies for a nap. Or if all governments had as a basic policy to always put things back where they found them and clean up their own mess. And it is still true, no matter how old you are - when you go out into the world, it is the best to hold hands and stick together.