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

We cannot direct the wind, but we can adjust the sails.

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

Sincerity and truth are the basis of every virtue.

If you can't you must, and if you must you can.

Always do what is right. It will gratify half of mankind and astound the other.

After all is said and done, more is said than done.

The marble not yet carved can hold the form of every thought the greatest artist has.

Patience is bitter, but its fruit is sweet.

Somewhere, something incredible is waiting to be known.

United we stand; divided we fall.

I want to know what passion is. I want to feel something strongly.

Aim for the highest.

Imagination will often carry us to worlds that never were, but without it we go nowhere.

When they say the sky's the limit to me that's really true

Weakness of attitude becomes weakness of character.

I don’t think we are going to become extinct. We are very clever and very resourceful.

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.

Every problem has in it the seeds of its own solution. If you don't have any problems, you don't get any seeds.

If you are humble nothing will touch you, neither praise nor disgrace, because you know what you are.

Life is entrusted to man as a treasure which must not be squandered, as a talent which must be used well.