When I'm good, I'm very good, but when I'm bad, I'm better.

Others have seen what is and asked why. I have seen what could be and asked why not.

A bird doesn't sing because it has an answer, it sings because it has a song.

My dear friend, clear your mind of cant.

The limits of the possible can only be defined by going beyond them into the impossible.

In a conflict between the heart and the brain, follow your heart.

If my life is going to mean anything, I have to live it myself.

Nothing great was ever achieved without enthusiasm.

Imagination is everything. It is the preview of life's coming attractions.

Employ your time in improving yourself by other men's writings so that you shall come easily by what others have labored hard for.

And, when you want something, all the universe conspires in helping you to achieve it.

Keep your face to the sunshine and you will never see the shadow.

Any book that helps a child to form a habit of reading, to make reading one of his deep and continuing needs, is good for him.

My optimism wears heavy boots and is loud.

Pizza makes me think that anything is possible.

However many holy words you read, however many you speak, what good will they do you if you do not act on upon them?

How wrong is it for a woman to expect the man to build the world she wants, rather than to create it herself?

Don't find fault, find a remedy; anybody can complain

Some people regard discipline as a chore. For me, it is a kind of order that sets me free to fly.

I am as bad as the worst, but, thank God, I am as good as the best.

All the darkness in the world cannot extinguish the light of a single candle.