A. man's power is dependent upon (1) physical heredity, (2) social inheritance or endowment in the form of parental care, education, accumulation of scientific knowledge, everything which enables him to be more efficient than the savage, and finally, (3) on his own efforts. In all these three respects men are undoubtedly unequal. But the question is, shall we treat them as unequal because they are unequal ? This is a question which the opponents of equality must answer.