Work is the only meanin’ I’ve ever known. Like the man in the song says, I just gotta keep on keepin’ on.

In the past, human progress had to come at the cost of the environment. If we wanted energy, we had to burn wood or we had to burn fossil fuels. If we wanted to grow more food, we had to expand farmland, often at the cost of forests. But technology and innovation means we're very quickly decoupling these impacts, such that this conflict is no longer true.

If you don't know what you're living for, you haven't yet lived.

There’s an interesting trend that occurs in times of mounting pressure and high uncertainty, which is that it’s a natural human tendency to seek out people that agree with us, that are similar to us because it’s a source of comfort in a world that’s so rapidly changing.

I'm extremely ambitious. I don't know why people are afraid to say that. I won't sell my soul to the devil, but I do want success and I don't think that's bad.

If you get up early, work late, and pay your taxes, you will get ahead–if you strike oil.

Search for what is good and strong and beautiful in your society and elaborate from there. Push outward. Always create from what you already have. Then you will know what to do.

There are thousands and thousands of people out there leading lives of quiet, screaming desperation, where they work long, hard hours at jobs they hate to enable them to buy things they don't need to impress people they don't like.

Success is a function of persistence and doggedness and the willingness to work hard for 22 minutes to make sense of something that most people would give up on after 30 seconds.