S. I. Hayakawa

Good teachers never say anything. What they do is create the conditions under which learning takes place.

Definitions, contrary to popular opinion, tell us nothing about things. They only describe people's linguistic habits; that is, they tell us what noises people make under what conditions.

If you see in any given situation only what everybody else can see, you can be said to be so much a representative of your culture that you are a victim of it.

Learning to write is learning to think. You don't know anything clearly unless you can state it in writing.