I think a major element of jetlag is psychological. Nobody ever tells me what time it is at home.

No one will protect what they don't care about, and no one will care about what they have never experienced.

The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

What humans do over the next 50 years will determine the fate of all life on the planet.

Anyone who believes in indefinite growth on a physically finite planet is either mad or an economist

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?

How could I look my grandchildren in the eye and say I knew what was happening to the world and did nothing.

Bringing nature into the classroom can kindle a fascination and passion for the diversity of life on earth and can motivate a sense of responsibility to safeguard it.

I just wish the world was twice as big and half of it was still unexplored.

I mean, when do we start feeling like the world belongs to us?I wanted to tell him that the world would never belong to us. 'I don't know', I said. 'Tomorrow.

Patience is an action and a skill to be cultivated. It actually solves more problems that most other actions.

Remember, childhood only lasts 10-12 years. There's a lot that has to be squeezed in to make for a lifetime of happy memories. ♥

The world is for you and for the ones who roll out the carpet, even if it's tattered. They're scattered all over. And if you look carefully, they can help you find your way home, wherever you are.

Our level of love or our level of fear determines the state of our reality.

Doing exercise without monitoring yourself will be rare in the future of wearable technology.

I wanted to be a writer. I wanted to say something about home.

The dread of futility has been my life-long plague.

Simplicity, wit, and good typography.

Last night there seemed to be a chance. Anything was possible last night. That was the trouble with last nights. They were always followed by this mornings.