We need to start prioritizing people, not polar bears.

If you start getting instability in large powers with nuclear weapons, that's not a good day.

Climate change isn't just an environmental issue; it's a technology, water, food, energy, population issue. None of this happens in a vacuum.

People working on climate change should prepare for catastrophic success.

Unfortunately, there's a lot of people in high places who understand the science but don't like where the policy leads them: too much government control.

I like to think of climate action as a three-legged stool.

Politicians have responsibility to act if the public opinion changes.

Human existence is as a result of the product of time

There is nothing more fascinating than the fusion between power and mystery in our great, little treasure: the human brain.

Life is made for the living.

My experience has taught me that a man who has no vices has damned few virtues.

You cannot talk about race without talking about privilege. And when people start talking about privilege, they get paralyzed by shame.

The environment, what surrounds you, is so alive and delightful and complex.

Remember when we used to worry about some weirdo having a razor blade inside an apple on Halloween? Not anymore. Like a kid today would eat an apple.

So many things I would have done, but clouds got in my way.

Greatness breaks laws.

Surely, it is much easier to respect a man who has always had respect, than to respect a man who we know was last year no better than ourselves, and will be no better next year.