| The state of definition of good in Principia Ethicacauses a lot of thinking and criticism.This is a fundamental reflection of the generality and ambiguity in the state of definition.This text teases out the state of definition by Moore which is united with compositive knowledge and is taken as an analytic knowledge.Then,by means of the intact state of definition in Aristotel,we can clarify the problem of definition.Good is the initial point of theoretical system,and can not be transcended further.Definition means the reason of itself.Then,good is the essence of ethical system.Just as Moore said,good is good,that is the end.Although good is the initial point of theoretical system,the quest for good means an activity of person.This activity is an activity of quest for theoretical knowledge,and it belongs to the range of practical knowledge.Good roots in practical philosophy and ethics.Practical philosophy discusses the inevitable structure in person`s action,and that is a knowledge of profile.It`s core is virtue which means the form which makes person achived the best action and status of himself.Our action which accords with virtue reflects the moral truth in our action.Because practical philosophy laies a fundation for theoretical philosophy,good in practical philosophy is the definition of the good in theoretical philosophy. |