Nothing very good, or very bad, lasts very long.
Do or do not -- there is no try.
Keep the juices flowing by jangling around gently as you move.
Apathy rules -- who cares?
In times of change, the learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.
Meddle not in the affairs of dragons, for you are crunchy and taste good with ketchup.
The idea that is not dangerous is not worthy of being called an idea at all.
We are all here on earth to help others; what on earth the others are here for I don't know.
I think, therefore, I am... I think...
Stop worrying. You're not being paid enough to worry.