Teaching is the greatest act of optimism.

A pessimist is a man who thinks everybody is as nasty as himself, and hates them for it.

Be like the flower, turn your face to the sun.

When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

The less you respond to negative people, the positive your life will become.

When you are enthusiastic about what you do, you feel this positive energy. It’s very simple.