Egocentric: A person who has his I's too close together.
The lecturer who is full of his subject is usually very slow in emptying himself.
The best time to give advice to your children is while they're still young enough to believe you know what you're talking about.
Somebody is always doing something that somebody else said couldn't be done.
The man who has a girl in every port is not a sailor but a wholesaler.
There would be no population explosion if people who are trying to keep the wolf from the door wouldn't let the stork fly in through the window.