I think you should always be seeking negative feedback.

There are some important differences between me and Tony Stark, like I have five kids, so I spend more time going to Disneyland than parties.

Most people can learn a lot more than they think they can. They sell themselves short without trying.

I hate writing about personal stuff. I don't have a Facebook page. I don't use my Twitter account. I am familiar with both, but I don't use them.

We're running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere can handle before there is an environmental catastrophe.

I'm extremely confident that solar will be at least a plurality of power, and most likely a majority... in less than 20 years.

Physics is a good framework for thinking. ... Boil things down to their fundamental truths and reason up from there.