practice, at least as far as this latter depends on human beings. The significance of a political philosopher does not depend on the practical success of the plans he lays down but rather on their absolute truth and the influence they exert on the progress of mankind. If it were otherwise, the founders of religions could not be considered as the greatest men who have ever lived, because their moral aims will never be completely or even approximately carried out in practice. Even that religion which is called the Religion of Love is really no more than a faint reflex of the will of its sublime Founder. But its significance lies in the orientation which it endeavoured to give to human civilization, and human virtue and morals.