In demonstrating that humans behave with justice, tolerance, reason, love toward other forms of life, we are doing no more than demanding that humans… - Edward Abbey

" "

In demonstrating that humans behave with justice, tolerance, reason, love toward other forms of life, we are doing no more than demanding that humans be human — that is, be true to the best aspects of human nature.
Humans being human, therefore, cannot consider themselves morally superior to, say, bears being bear-like, eagles being eagle-like, etc.