Some people are immune to good advice.
Every treasure is guarded by dragons. That's how you can tell it's valuable.
Make hay while the sun is still shining.
It really is a nice theory. The only defect I think it has is probably common to all philosophical theories. It's wrong.
I caught my second wife screwing my stepdad. OK? It's a cruel world, Walt. Grow up.
Let's just say I know a guy who knows a guy who knows another guy.