It's not enough to be able to spell "magnificence" in your bedroom. You have to be able to spell it at the microphone during the spelling bee.
A tiny hole can empty a great big bucket.
Flowers and pricker bushes grow out of the same dust.
Whiners usually play alone.
Look at the footprints you've made.
It feels a lot colder when you're shoveling snow than when you're building a snow fort.