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

You have to make the rules, not follow them.

When you're at the end of your rope, tie a knot and hold on

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

The unexamined life is not worth living.

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

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.

Everything you want is out there waiting for you to ask. Everything you want also wants you. But you have to take action to get it.

To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.

You are never too old to become younger!

The power for creating a better future is contained in the present moment: You create a good future by creating a good present.

Great things are not done by impulse, but by a series of small things brought together.

When obstacles arise, you change your direction to reach your goal; you do not change your decision to get there.

You can't learn in school what the world is going to do next year.

If the only tool you have is a hammer, you tend to see every problem as a nail.

We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

Truth can be stated in a thousand different ways, yet each one can be true.

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

There are only 3 colors, 10 digits, and 7 notes; its what we do with them that's important.

We're lost, but we're making good time

Do what you can, with what you have, where you are.