No matter what Donald Trump says, it's clear that global warming is rapidly changing conditions on our planet.

It doesn’t much matter whether people care or don’t care. What matters is that people change the world.

It may seem impossible to imagine that a technologically advanced society could choose, in essence, to destroy itself, but that is what we are now in the processnof doing.

If in your lifetime you watch a species go extinct, or plummet almost to the point of extinction, that is a sign that something really serious is going on.

Neanderthals were pretty smart, and if we actively killed them off, then probably we did so in the same way that humans kill each other.

Though it might be nice to imagine there once was a time when man lived in harmony with nature, it’s not clear that he ever really did.

Humans will eventually become extinct. People treat that as a radical thing to say. But the fossil record shows us that everything eventually becomes extinct.

Most of us live in parts of the world where we don't expect to see much, and we wouldn't necessarily notice things that are crashing.

There's this idea of shifting baselines. It was coined by a guy named Jeremy Jackson. It's the idea that every generation takes what it sees, and says, "Okay, well, that's the norm."

In a poll commissioned by Time and CNN, two-thirds of American parents said they think that their children are spoiled.

There are a lot of things that we could do to minimize what we're doing, but we're not getting back those frogs that I saw that no longer exist.

Let this hell be our heaven.

This is definitely / for the brothers / who ain't here.

Success, for most people, requires unlearning as much as learning.

The next time you hear a person say, 'I don't have time' or 'I have no time, ' Take a moment to be with them. Without time, that somebody becomes a nobody.

The liberties of a people never were, nor ever will be, secure, when the transactions of their rulers may be concealed from them.

A less popular name for the Second Person of that delectable newspaper Trinity, the Roomer, the Bedder, and the Mealer.

You can't just go on being a good egg. You must either hatch or go bad!

The clarification of our political ideas insensibly changes into and becomes indistinguishable from the history of political ideas.

I voted for Arnold Schwarzenegger 'cause I figured he can go back in the future. Put that in the act.

Afrikaans is my first language, although you would never know, as my English accent has more of an American-British thing going on from all my years of travelling.