If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.

Every aquarium will eventually leak.

Fear doesn't exist anywhere except in the mind.

Creativity is the greatest rebellion in existence.

If you would take, you must first give, this is the beginning of intelligence.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

Experience keeps a dear school, but fools will learn in no other.

Judge a man by his questions rather than by his answers.

Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.

Chaos is a name for any order that produces confusion in our minds.

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.

Most of what matters in our lives takes place in our absence.

Circumstances do not make a man, they reveal him.

We never see ourselves as others see us.

So many people have this idea: I want to achieve something great or be somebody great. And they neglect the step that leads to greatness. They don't honor this step at this moment because they have this idea of some future moment where they are going to be great.

We must live together as brothers or perish together as fools.

I think about the meaning of pain. Pain is personal. It really belongs to the one feeling it. Probably the only thing that is your own. I like mine.

Our society is run by insane people for insane objectives.

Wonder is the beginning of wisdom.

Just remember, once you're over the hill you begin to pick up speed.

Promises are like crying babies in a theater, they should be carried out at once.