Everything we make pollutes. The most responsible thing we can do is to make each product as well as we know how so it lasts as long as possible.

The hardest thing in the world is to simplify your life; it’s so easy to make it complex.

How you climb a mountain is more important than reaching the top

Real adventure is defined best as a journey from which you may not come back alive, and certainly not as the same person.

The whole purpose of an adventure is to gain some spiritual or emotional insight. When you compromise the process, you compromise the gain.

It's not an adventure until something goes wrong.

You ask me about the past, you ask me about the future, the only way to be happy is to be living right now.

To do good, you actually have to do something.

If you want to understand the entrepreneur, study the juvenile delinquent. The delinquent is saying with his actions, ‘This sucks, I’m going to do my own thing.’

We're a part of nature. As we destroy nature, we destroy ourselves. It's a selfish thing to want to protect nature.

Mastery... is to work toward simplicity; replace complex technology with knowledge, hard work, and skill.

He could sit in the dust and dark of the carriage house and rot for the rest of his life. Clearly that's what he wished to do. It was not my place to get in the way of so profound a destiny.

It is not for the gods to decide whether or not Man exists - it is for Man to decide whether or not the gods exist.

Sometimes you surprise yourself with what you can handle, and if you come out the other end with some wisdom, then it's not such a bad thing.

Success can make you go one of two ways. It can make you a prima donna - or it can smooth the edges, take away the insecurities, let the nice things come out.

When you're 20 you can put a ton of old-age prosthetics on and be an old guy, but when you're 70 you can't play a 20-year-old.

Look closely and you will find that people are happy because they are grateful. The opposite of gratefulness is just taking everything for granted.

The world's forests are a shared stolen treasure that we must put back for our children's future

All good things are cheap: all bad are very dear.

The only way of learning the method of science is the long and bitter way of personal experience.

I think statistics go in one ear and out the other. All of us respond to stories more than numbers.