Destroying species is like tearing pages out of an unread book, written in a language humans hardly know how to read, about the place where they live.

The splendors of earth do not simply lie in their roles as human resources, supports of culture, or stimulators of experience.

Tom Regan’s now classic Case for Animal Rights blends careful argument with intense moral concern. For two decades, where Regan has been taken seriously, animals have been better off and people have become better persons. This new edition is a welcome sign of this influence continuing.

The first lesson of evolution was one of conflict. The lesson now is one of kinship.