Every man serves a useful purpose: a miser, for example, makes a wonderful ancestor.
As a matter of fact is an expression that precedes many an expression that isn't.
Give a child enough rope and he will trip you up.
You don't need to take a persons advice to make him feel good, just ask him for it.
It usually takes two people to make one of them angry.
Middle age is when work is a lot less fun and fun is a lot more work.