There is no man so blind as one who has made up his mind.

Simplicity is the most difficult of all concepts.

The first step in innovation is to know that a thing can be created. After that, the rest is a matter of detail.

Life is filled with tests, one after another, and if you don't recognize them, you are certain to fail the most important ones.

Any school for free citizens must begin by teaching distrust, not trust. It must teach questioning, not acceptance of stock answers.

No person can ever know everything that is in the heart of another. We are all Face Dancers in our souls.

Opportunities are a tricky crop, with tiny flowers that are difficult to see and even more difficult to harvest.