Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

The men who have succeeded are men who have chosen one line and stuck to it.

Question with boldness even the existence of God; because, if there be one, he must more approve of the homage of reason than that of blindfolded fear.

Sincerity and truth are the basis of every virtue.

I discover myself on the verge of a usual mistake.

In life, you need either inspiration or desperation.

He who is not courageous enough to take risks will accomplish nothing in life

I'm not telling you it's going to be easy - I'm telling you it's going to be worth it.

You shape your own destiny.

You can't build a reputation on what you are going to do.

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

I wouldn't say I was the best manager in the business. But I was in the top one.

Sovereignty is not given, it is taken.

Fantasy is an exercise bicycle for the mind. It might not take you anywhere, but it tones up the muscles that can. Of course, I could be wrong.

If you put off everything till you're sure of it, you'll never get anything done.

The starting point of all achievement is desire.

Memories of our lives, of our works and our deeds will continue in others.

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

Pizza makes me think that anything is possible.

When I'm good, I'm very good, but when I'm bad, I'm better.

First ask yourself: What is the worst that can happen? Then prepare to accept it. Then proceed to improve on the worst.