ABSTRACT
Before we can discuss this subject we must form some conception as to the kind of effect that we consider a help to mankind. Are mankind helped when they become more numerous? Or when they become less like animals? Or when they become happier? Or when they learn to enjoy a greater diversity of experiences? Or when they come to know more? Or when they become more friendly to one another? I think all these things come into our conception of what helps mankind, and I will say a preliminary word about them.
