The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

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

It's all to do with the training: you can do a lot if you're properly trained.

Whatever you are, be a good one.

Knowing what's right doesn't mean much unless you do what's right.

Life isn't about finding yourself. Life is about creating yourself.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

Never look back unless you are planning to go that way.

The people who were trying to make this world worse are not taking the day off. Why should I?

Plan your work - work your plan. Lack of system produces that 'I'm swamped' feeling.

The only way of finding the limits of the possible is by going beyond them into the impossible.

Instead of worrying about what people say of you, why not spend time trying to accomplish something they will admire

I just couldn't take school seriously: I had this guitar neck with four frets which I kept hidden under the desk. It had strings on it so I would practice my chord shapes under the desk and that's about all I did at school.

Be the change that you wish to see in the world.

They alone live, who live for others.

The key to immortality is first living a life worth remembering.

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

Do not worry about holding high position; worry rather about playing your proper role.

Only in the darkness, you are able to see the stars.

Change the way you look at things and the things you look at change.

Stop acting so small. You are the universe in ecstatic motion.