 All four types of moral judgments have been the subject of discussion since the dawn of western philosophy in ancient Greece. The Greeks themselves were especially concerned with questions about virtue and vice, and the concept of intrinsic value may be found at work in their writings and in the writings of moral philosophers ever since. Despite this fact, and rather surprisingly, it is only within the last one hundred years or so that this concept has itself been the subject of sustained scrutiny, and even within this relatively brief period the scrutiny has waxed and waned.