Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.

If you've found some way to educate yourself about engineering, stocks, or whatever it is, good employers will have some type of exam or interview and see a sample of your work.

I'm invested in a lot of battery companies - and there's a lot that exists I'm not in.

When Ford sells a car, a dealer isn't allowed to take out the engine and put a different one in. When a newsstand sells the Washington Post, no one can go to the newsstand and pay them to rip out the classified section and put their own classified section in - if they could, they would do so.

That it's a worldwide thing that families are better off.

When you lose a customer, it can be tempting to tell each other, "That customer's not very sharp. They just made the wrong decision".

The most interesting biofuel efforts avoid using land that's expensive and has high opportunity costs. They do this by getting onto other types of land, or taking advantage of byproducts that aren't used in the food chain today, or by intercropping.