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

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.

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.

People must feel that the natural world is important and valuable and beautiful and wonderful and an amazement and a pleasure.

Sometimes, you feel like being watched from behind by someone.When you turned, it's just nothing, nobody, none, or only someone who's daydreaming and staring right through you.

No matter how bad your life gets if you Execute yourself it won't get better!

Pity costs nothing and ain't worth nothing.

Hate is baggage. Life's too short to be pissed off all the time. It's just not worth it.

The ballot is the only safety.

We all can dance when we find music that we love.

Providence is but another name for natural law. Natural law itself would go out in a minute if it were not for the divine thought that is behind it.

He used to believe good things happened in this kind of weather.

The problem with certainty is that it is static; it can do little but endlessly reassert itself. Uncertainty, by contrast, is full of unknowns, possibilities, and risks.

We embark unhesitatingly on the path, in a direction that is absolutely right and urgent, supported by everyone, in the knowledge that this path is but a learning process