So much for the utility of self-sacrifice--undeniable, perhaps, so long as a wise and ruthless foresight rules, but immediately questionable when sentimentality enters into the matter. There remains the answer in rebuttal that sentimentality, after all, is native to the soul of man, that we couldn't get rid of it if we tried. Herein, if we look closely, we will observe tracks of an idea that has colored the whole stream of human thought since the dawn of Western philosophy, and is accepted today, as irrefutably true, by all who pound pulpits and wave their arms and call upon their fellow men to repent. It has clogged all ethical inquiry for two thousand years, it has been a premise in a million moral syllogisms, it has survived the assaults of all the iconoclasts that ever lived. It is taught in all our schools today and lies at the bottom of all our laws, prophecies and revelations. It is the foundation and cornerstone, not only of Christianity, but also of every other compound of theology and morality known in the world. And what is this king of all axioms and emperor of all fallacies? Simply the idea that there are rules of "natural morality" engraven indelibly upon the hearts of man--that all men, at all times and everywhere, have ever agreed, do now agree and will agree forevermore, unanimously and without reservation, that certain things are right and certain other things are wrong, that certain things are nice and certain other things are not nice, that certain things are pleasing to God and certain other things are offensive to God.