Believe in the power of your own voice. The more noise you make, the more accountability you demand from your leaders, the more our world will change for the better.

I think that we should ban so-called junk guns. I think we should ban assault weapons like the weapons used here [in Fort Worth], yes. I think that the kinds of weapons that have no legitimate use for hunting or the kind of weapon that a homeowner would use, I think they should be banned, yes, those kind of weapons.

Unless we act boldly and quickly to deal with the underlying causes of global warming, our world will undergo a string of terrible catastrophes.

The oil industry has outpaced the building of a public consensus of the implications of climate science.

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

The golden thread of reason that used to be stretched taut to mark the boundary between the known and the unknown is now routinely disrespected.

I did very extensive diligence on Al Jazeera English, the network from which Al Jazeera America is going to be derived, and it's really very clear that they have long since established a reputation for excellence and integrity and objectivity.