The only way of discovering the limits of the possible is to venture a little way past them into the impossible.

Only the wisest and stupidest of men never change.

The way to become rich is to put all your eggs in one basket and then watch that basket.

Gratitude is an illness suffered by dogs.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

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

We need never be ashamed of our tears.

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

You have to dream before your dreams can come true.

Waste no more time arguing about what a good man should be. Be one.

The starting point of all achievement is desire. Keep this constantly in mind. Weak desires bring weak results, just as a small amount of fire makes a small amount of heat.

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

They alone live, who live for others.

When I was in college, I wanted to be involved in things that would change the world.

The limits of the possible can only be defined by going beyond them into the impossible.

Keep your face always toward the sunshine - and shadows will fall behind you.

It's what you learn after you know it all that counts.

Nothing is impossible, the word itself says 'I am possible'

I am always doing what I cannot do yet, in order to learn how to do it.

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

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