Lessons from Children's Literature

What lessons have you learned from children's literature?  Here are a few of my favorites, indicating the source:

• It is more fun to talk with someone who doesn't use long, difficult words but rather short, easy words like "What about lunch?" ~ Winnie the Pooh
• If everybody minded their own business, the world would go around a great deal faster than it does. ~The Duchess in Alice in Wonderland
• Don't cry because it's over. Smile because it happened.  ~ Dr. Seuss
• It is better to fail in originality than to succeed in imitation. ~ Moby Dick
• Work consists of whatever a body is OBLIGED to do, and Play consists of whatever a body is not obliged to do. ~Mark Twain
• And here is my favorite from a man who was like a child in all that he did, Danny Kaye:
  "Life is a great big canvas; throw all the paint you can at it."