I am always doing that which I can not do, in order that I may learn how to do it.

Out of your vulnerabilities will come your strength.

My optimism wears heavy boots and is loud.

Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.

The way to become rich is to put all your eggs in one basket and then watch that basket.

He that can have patience can have what he will.

If you want creative workers, give them enough time to play.

Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.

Sincerity and truth are the basis of every virtue.

Give yourself something to work toward - constantly.

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

The first rule is to keep an untroubled spirit. The second is to look things in the face and know them for what they are.

The present is theirs; the future, for which I really worked, is mine.

You have to work hard to get to the top of your game. I think every writer has doubts! I still do all the time.

When I go, God's going to have to give up his favourite chair.

Patience is bitter, but its fruit is sweet.

I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.

You shape your own destiny.

I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion'.

When I was in college, I wanted to be involved in things that would change the world.

It is better to light one small candle than to curse the darkness.