As a matter of fact is an expression that precedes many an expression that isn't.
Peter's Principle: In an organization, each person rises to the level of his own incompetence.
Middle age is when you stop criticizing the older generation and start criticizing the younger one.
Give a child enough rope and he will trip you up.
There are two kinds of egotists: Those who admit it, and the rest of us
There are two sorts of losers - the good loser, and the one who can't act.