“Civil disobedience has an honourable history, and when the urgency and moral clarity cross a certain threshold, then I think that civil disobedience is quite understandable, and it has a role to play.”

Distributed intelligence is the key to the advancement of human civilization. Dictatorships, communist countries, monarchies in the past all eventually collapsed because of their inefficiency in moving information.

We have a planetary emergency. We have to find a way to create, in the generation of those alive today, a sense of generational mission.

Making consumer choices that reward eco-friendly products and companies is a great way to start.

Our new technologies, combined with our numbers, have made us, collectively, a force of nature.

When it comes to climate, we can all make a big difference.

The will to act is a renewable resource.

The struggle to save the global environment is in one way much more difficult than the struggle to vanquish Hitler, for this time the war is with ourselves. We are the enemy, just as we have only ourselves as allies.

We can believe in the future and work to achieve it and preserve it, or we can whirl blindly on, behaving as if one day there will be no children to inherit our legacy. The choice is ours; the earth is in balance.

Consider what kind of car you get. Buy cars and other products that have the least impact environmentally.

I have always been fascinated with those who try to look over the horizon and see things that are coming at us.

The good news is, we have everything we need now to respond to the challenge of global warming. We have all the technologies we need, more are being developed…. But we should not wait, we cannot wait, we must not wait.

Our world faces a true planetary emergency. I know the phrase sounds shrill, and I know it’s a challenge to the moral imagination.

A zebra does not change its spots.

In a time of darkness, you don’t curse the darkness, you light a candle.

At some point, a false belief collides with physical reality.

We are running out of time, we must have a planetary solution to a planetary crisis.

Each new generation born is in effect an invasion of civilization by little barbarians, who must be civilized before it is too late.

Any time bombs are used to target civilians it is an act of terror.

After a time, civil servants tend to become no longer servants and no longer civil.

You can jail a Revolutionary, but you can’t jail the Revolution.

There are civil rights aspects and there are limits to what we can do.

The worst thing that can happen to a man is to become civilized.

If you are not prepared to use force to defend civilization, then be prepared to accept barbarism.

I believe it is my obligation to tell the story of the civil rights movement to the next generation.