What I mean by photographing as a participant rather than observer is that I'm not only involved directly with some of the activities that I photograph, such as mountain climbing, but even when I'm not I have the philosophy that my mind and body are part of the natural world

The combination of pictures and words together can be really effective, and I began to realise in my career that unless I wrote my own words, then my message was diluted

The reason that I keep writing is that all my most powerful messages about the fates of wild places that I care about need to have words as well as images

The best physician is also a philosopher.

Laziness breeds humors of the blood.

The chief merit of language is clearness, and we know that nothing detracts so much from this as do unfamiliar terms.

Those who are enslaved to their sects are not merely devoid of all sound knowledge, but they will not even stop to learn!