It's easier to throw sticks on the campfire than to try to restart it when it goes out.
Don't say "The last one there is a rotten egg": unless you're absolutely sure there's a slow kid behind you.
It's easier to knock on a door that's not shut all the way.
It's more fun to color outside the lines.
It's easier to see the mistake on someone else's paper.
If you want to zoom down the expert slope tomorrow, you have to fall down the bunny slope today.