We cannot do everything at once, but we can do something at once.

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.

Storms make trees take deeper roots.

Climbing to the top demands strength, whether it is to the top of Mount Everest or to the top of your career.

No one is free who has not obtained the empire of himself. No man is free who cannot command himself.

Be happy, but never satisfied.

Keep your eyes on the stars, and your feet on the ground.

It's not the load that breaks you down, it's the way you carry it.

If you fell down yesterday, stand up today.

If you don't like something, change it. If you can't change it, change your attitude. Don't complain.

The only way to make sense out of change is to plunge into it, move with it and join the dance.

Don?t only practice your art, but force your way into its secrets, for it and knowledge can raise men to the divine.

Life is like riding a bicycle. To keep your balance, you must keep moving.

After climbing a great hill, one only finds that there are many more hills to climb.

Question with boldness even the existence of God; because, if there be one, he must more approve of the homage of reason than that of blindfolded fear.

If we want a free and peaceful world, if we want to make the deserts bloom and man grow to greater dignity as a human being-we can do it.

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

Without ambition one starts nothing. Without work one finishes nothing. The prize will not be sent to you. You have to win it.

Courage is the thing. All goes if courage goes.

Freedom from the desire for an answer is essential to the understanding of a problem.

Freedom and independence form my character.