I'm a big fan of Bitcoin ... Regulation of money supply needs to be depoliticized.

In the age of the internet, with all of its problems, over time, the very fact that individuals can join the conversation creates the opportunity for the emergence of - for the re-emergence of a genuine conversation of democracy.

When fear displaces reason, the result is often irrational hatred and division.

When you're going through an emotional experience and you're focussed completely on what's happening, you can't even spare any attention that the camera's there.

I take no pleasure in the fact that the scientific predictions I’ve relayed to popular audiences turn out to be true.

The mountain glaciers in every region of the world are melting, many of them at an accelerated rate, threatening drinking supplies - drinking water supplies and agricultural water supplies. We have these record storms, drought, floods, fires, three deaths (ph) in the American West, climate refugees beginning now, expected to rise to the hundreds of millions unless we take action.

Tobacco addiction sinks its claws in deeply, it's just as powerful of [sic] an addiction as heroin or crack cocaine.