Human life will no longer be regarded with the kind of superstitious awe which it is accorded in traditional thought, and the lives of non-humans will no longer be a matter of indifference. This means that human life will, in a sense, be devalued, while the value granted to non-human life will be increased. A revised view of such matters as suicide and euthanasia, as well as a revised view of how we should treat animals, will result.

Created from Animals: The Moral Implications of Darwinism (1990), p. 5