„If you do what you’ve always done, you’ll get what you’ve always gotten.”

When you believe in a thing, believe in it all the way, implicitly and unquestionable.

Excellence is not a skill. It is an attitude.

Life and hope must cease together.

If you think adventure is dangerous, try routine; it is lethal.

You have to have a lot of passion for what you're doing, because it's so hard. Without passion, any rational person would give up.

Important principles may, and must, be inflexible.