There is still time to act and avoid a worsening climate but we are wasting precious time.

We're running out of time.

Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now with climate change, yet we dither.

We are on the precipice of climate system tipping points beyond which there is no redemption.

It would be immoral to leave young people with a climate system spiraling out of control.

Global warming has already triggered a sea level rise that could reach from 6 metres (19.69 ft) to 25 metres (27.34 yards).

What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.

How long have we got? We have to stabilize emissions of carbon dioxide within a decade, or temperatures will warm by more than one degree... We don't have much time left.

What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet.

It's as certain that as long as fossil fuels are the cheapest energy, we will just keep burning them.

We have at most ten years—not ten years to decide upon action, but ten years to alter fundamentally the trajectory of global greenhouse emissions.

When life gives you something that makes you feel afraid, that's when life gives you a chance to be brave.

I've been called the journeyman. It's really more by default than it is by design.

The most important thing is being passionate about what you're doing and always give it your all. That is the key to success.

When you work with kids, you realize if they have a really good, stable family environment that they're going to be okay.

But the act, called the sexual act, is not for the depositing of seed. It is for leaping off into the unknown, as from a cliff's edge, like Sappho into the sea.

When you meditate, you focus to clear the mind and to bring the willpower together. But then, toward the end of the session let go, just become eternity.

Societies have progressed much more during times of peace than during wars.

You may either win your peace or buy it: win it, by resistance to evil; buy it, by compromise with evil.

I want the recording process to be a time in my life that I will remember.

Well, this week for example, I was just in Los Angeles making a documentary for German television on whales. They had tried to get me in England where they missed me.