It's easier to see the mistake on someone else's paper.
You don't get to decide your part in the school play, but you do get to decide whether or not you play it well.
Flowers and pricker bushes grow out of the same dust.
Getting lost teaches you how to read a map.
Nobody notices it when your zipper is up, but everyone notices when it's down.
If you want pancakes for breakfast, offer to help make them.