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

It is our choices...that show what we truly are, far more than our abilities.

In a day, when you don't come across any problems - you can be sure that you are travelling in a wrong path.

Most people live and die with their music still unplayed. They never dare to try.

When you're curious, you find lots of interesting things to do.

A long apprenticeship is the most logical way to success. The only alternative is overnight stardom, but I can't give you a formula for that.

Don't just read the easy stuff. You may be entertained by it, but you will never grow from it.

The greatest sin is to think yourself weak

Your pain is the breaking of the shell that encloses your understanding.

I may have had a lot of luck in my life, but I still need to find a challenge in the game.

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

Nobody can hurt me without my permission.

No leader can be too far ahead of his followers.

Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.

Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are.

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

Today I shall behave, as if this is the day I will be remembered.

Do not count your chickens before they are hatched.

No great discovery was ever made without a bold guess.

I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.

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