Diligence is the mother of good fortune. And idleness, its opposite, never brought a man to the goal of any of his best wishes.

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.

I don't know who my grandfather was; I'm much more concerned to know what his grandson will be.

When I give, I give myself.

I am the captain of my soul.

If you don't know, the thing to do is not to get scared, but to learn.

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

Never tell all you know-not even to the person you know best.

So early in my life, I had learned that if you want something, you had better make some noise.

The person who takes no chances generally has to take whatever is left when others are through choosing.

Don't hit at all if it is honorably possible to avoid hitting; but never hit soft!

What lies behind us and what lies before us are tiny matters compared to what lies within us.

I am always doing that which I can not do, in order that I may learn how to do it.

Some people feel the rain. Others just get wet.

Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.

You shape your own destiny.

I seldom end up where I wanted to go, but almost always end up where I need to be.

A man can't soar too high, when he flies with his own wings.

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

How long should you try? Until.

We do not consider our principles as dogmas contained in books said to come from heaven. We derive our inspiration, not from heaven, or the unseen world, but directly from life.