Nobody notices it when your zipper is up, but everyone notices when it's down.
Getting lost teaches you how to read a map.
You can teach an old dog new tricks with the right kind of doggie treats.
It's easier to knock on a door that's not shut all the way.
One thing you can't pretend to be is funny.
If you want to zoom down the expert slope tomorrow, you have to fall down the bunny slope today.