Our perfect companions never have fewer than four feet. – Colette

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

It often happens that a man is more humanely related to a cat or dog than to any human being. – Henry David Thoreau