Water is the key to life, but in frozen form, it is a latent force. And when it vanishes, Earth becomes Mars.

It's up to us as photographers to give voice to the natural world.

I think a photograph, of whatever it might be - a landscape, a person - requires personal involvement. That means knowing your subject, not just snapping at whats in front of you.

A lion is not a lion is not a lion. As individuals, as mates, as members of a society, they're all very different.

Life is a force in its own right. It is a new element. And it has altered the Earth. It covers Earth like a skin.

Biodiversity starts in the distant past and it points toward the future.

Nature's my muse and it's been my passion.

Life needs a membrane to contain itself so it can replicate and mutate.

Tourism is important because it can create sustainable local economies. Id much rather have 1,000 tourists going up the Tambopata than 1,000 gold miners.

Writers don't write from experience, although many are hesitant to admit that they don't. ...If you wrote from experience, you'd get maybe one book, maybe three poems. Writers write from empathy.

Liberty exists in proportion to wholesome restraint; the more restraint on others to keep off from us, the more liberty we have.

Life is not all high emotion. Some of the most interesting things are when its not highly emotional: little details of relationships and body language.

I keep telling myself I should try very hard to write a novel of about 210 pages... I don't seem to be capable of it, but I keep hoping it will happen.

A lottery is a taxation on all of the fools in creation.

When you start somewhere, you've started.

The expert in battle seeks his victory from strategic advantage and does not demand it from his men.

Before you reject an idea, find at least five good things about it.

The Web does not just connect machines, it connects people.