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

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

Champions aren't made in the gyms. Champions are made from something they have deep inside them - a desire, a dream, a vision.

Isn't it astonishing that all these secrets have been preserved for so many years just so we could discover them!

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

Perseverance is failing 19 times and succeeding the 20th.

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

Never trust the advice of a man in difficulties.

To see me does not necessarily mean to see my face. To understand my thoughts is to have seen me.

Truth is like the sun. You can shut it out for a time, but it ain't goin' away.

Imperfection is beauty, madness is genius and it's better to be absolutely ridiculous than absolutely boring.

To attain the impossible, one must attempt the absurd.

If you can accept losing, you can't win.

The superior man thinks only of virtue; the common man thinks only of comfort.

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

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

Yelling at living things does tend to kill the spirit in them. Sticks and stones may break our bones, but words will break our hearts...

My dear friend, clear your mind of cant.

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

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

Believe you can and you're halfway there.