Repetition of the same thought or physical action develops into a habit which, repeated frequently enough, becomes an automatic reflex.

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

Focus on where you want to go, not on what you fear.

I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.

We are all in the gutter, but some of us are looking at the stars.

One man with courage is a majority.

My mission in life is not merely to survive, but to thrive; and to do so with some passion, some compassion, some humor, and some style

Lack of direction, not lack of time, is the problem. We all have twenty-four hour days.

If you put off everything till you're sure of it, you'll never get anything done.

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

It always seems impossible until it's done.

I don't care what people think or say about me, I know who I am.

My advice to other disabled people would be, concentrate on things your disability doesn't prevent you doing well, and don't regret the things it interferes with. Don't be disabled in spirit as well as physically.

You can't learn in school what the world is going to do next year.

You lose nothing when fighting for a cause ... In my mind the losers are those who don't have a cause they care about.

The past cannot be changed. The future is yet in your power.

Victory is for those who can say 'Victory is mine'. Success is for those who can begin saying 'I will succeed' and say 'I have succeeded' in the end.

Life is 10 percent what happens to you and ninety percent how you respond to it.

Nothing great was ever achieved without enthusiasm.

People don't realize how a man's whole life can be changed by one book.

If you get up in the morning and think the future is going to be better, it is a bright day. Otherwise, it's not.