Anyone who thinks that you can have infinite growth on a planet with finite resources is either a madman or an economist.

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.

Survival was an unpleasent thing to witness.

You can't sweeten the well by painting the pump.

Man’s usurpation over nature is an egotism that will destroy human as well as whale kingdoms. … Academies should return to wisdom study in tree groves rather than robot study in plastic cells

If it's a woman it's caustic, if it's a man it's authority, If it's a woman it's too pushy, if it's a man it's aggressive in the best sense of the word.

I would like to take revenge but I'm not looking for excuses for having lost to her

Whenever the medium of photography is useful for a particular task, I use it. If another medium is more suitable I use that.

All I have is me. Over-worked, under-appreciated, middle-aged, and shriveled up.

only to people!' shouted Rincewind. He drew his sword and, with a smooth overarm throw, completely failed to hit the troll.

Remember to pray fervently.