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.

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.

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."

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

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.

All Dogs Go To Heaven? Sorry, kids. It's only the dogs who've accepted Christ.

One who does not deserve your tears does not deserve your heart.

My favorite song? 'Amazing Grace.' Anybody singing it. But the best it'll ever be done is by the Scottish National Pipe band and their National Orchestra. It'll bring tears to your eyes.

The key to self-confidence is knowing that you would choose you... and why. In this way the chosen becomes the chooser, and love versus fear becomes the energy of choice.

When you change your diet, you can change your entire physiology and you can heal

Home sales are coming down from the mountain peak, but they will level out at a high plateau - a plateau that is higher than previous peaks in the housing cycle.

So I step into the future, as bravely as I'm able, with my heart longing for a time I'll never see again.

Most people here don't have a wide emotional range. It's just the type of people astronauts are, they're required to be level.

The natural role of twentieth-century man is anxiety.

I don't worry too much about the fundamentalist principles that are in almost any discussion about Jazz.