The sun, the moon, and the stars would have disappeared long ago... Had they happened to be within the reach of predatory human hands. 

Havelock  Ellis

We reached the old wolf in time to watch the fierce green fire dying in her eyes. I realized then, and have known ever since, that there was something new to me   in those eyes - something known only to her and the mountain. I was young  then, and full of trigger itch, I thought that because fewer wolves meant more deer, that no wolves would mean a hunter's paradise. But after seeing the green fire die, I sensed that neither the wolf nor the mountain agreed with such a view.

A Sand Country Almanac
Aldo Leopold