If I can't understand what you are saying, you're explaining it wrong.
I'm not pessimistic; there's just nothing to be optimistic about.
Life's lessons will be repeated until they are learned.
If you do what you have to do when you have to do it, you can do what you want to do when you want to do it.
What's wrong is wrong, no matter how many people are doing it; what's right is right, even if nobody is doing it.
You can tell how big a person is by how small the things are that bother him.
You can tell more about a person by what he says about other people than by what other people say about him.
There are three types of lies: lies, damn lies, and statistics!
Tell me and I'll forget. Show me and I may not remember. Involve me and I'll understand.
If necessity is the mother of invention, then laziness is the father.