"It is refreshing to find a treatment of he psychology of the moral agent, the being we know as man, without beginning with the oyster or the earthworm, and being left as last in doubt whether the human soul differs in kind or degree from the insignificant embodiment of nervous susceptibility with which we began. Dr. Valentine takes man as he finds him, endowed with rational intellect, sensibility, and free will, and leaves the evolutionary biologist to amuse himself with the problem how he came to be what he is. What he is, is all that essentially concerns the ethical philosopher." -Bibliotheca Sacra