Hobbes believed that in man’s natural state, moral ideas do not exist. Thus, in speaking of human nature, he defines good simply as that which people desire and evil as that which they avoid, at least in the state of nature. Hobbes uses these definitions as bases for explaining a variety of emotions and behaviors. For example, hope is the prospect of attaining some apparent good, whereas fear is the recognition that some apparent good may not be attainable. Hobbes admits, however, that this definition is only tenable as long as we consider men outside of the constraints of law and society. In the state of nature, when the only sense of good and evil derives from individuals’ appetites and desires, general rules about whether actions are good or evil do not exist. Hobbes believes that moral judgments about good and evil cannot exist until they are decreed by a society’s central authority. This position leads directly to Hobbes’s belief in an autocratic and absolutist form of government.