I have been studying the traits and dispositions of the "lower animals" (so called) and contrasting them with the traits and dispositions of man. I find the result humiliating to me. ~Mark Twain, Letters from the Earth, 1907

If all the beasts were gone, men would die from a great loneliness of spirit, for whatever happens to the beasts also happens to the man. All things are connected. Whatever befalls the Earth befalls the sons of the Earth. ~Chief Seattle of the Suquamish Tribe, letter to President Franklin Pierce

Lots of people talk to animals.... Not very many listen, though.... That's the problem. ~Benjamin Hoff, The Tao of Pooh