Physics is really figuring out how to discover new things that are counterintuitive, like quantum mechanics. It's really counterintuitive.

You shouldn't do things differently just because they're different. They need to be... better.

It's not as though we can keep burning coal in our power plants. Coal is a finite resource, too. We must find alternatives, and it's a better idea to find alternatives sooner then wait until we run out of coal, and in the meantime, put God knows how many trillions of tons of CO2 that used to be buried underground into the atmosphere.

People should pursue what they're passionate about. That will make them happier than pretty much anything else.

Every mode of transport that we use - whether it's planes, trains, automobiles, bikes, horses - is reusable, but not rockets. So we must solve this problem in order to become a space-faring civilization.

Automotive franchise laws were put in place decades ago to prevent a manufacturer from unfairly opening stores in direct competition with an existing franchise dealer that had already invested time, money and effort to open and promote their business.

If anyone thinks they'd rather be in a different part of history, they're probably not a very good student of history. Life sucked in the old days. People knew very little, and you were likely to die at a young age of some horrible disease. You'd probably have no teeth by now. It would be particularly awful if you were a woman.