Value Category and Labor Category in Labor Value Theory of Marx

Value and labor are two focus categories of value theory of Marx.Only mastering value and labor,can new contribution and de-velopment be made to labor value theo ry of Marx.Value which is the basis of price and historical category is a ki nd of absolute human labor in commodity exchange and embodies a kind of covered relationship between people by commodity.Labor which creates commodity is absolute human labor is production labor whic h includes physical labor and mental labor whose structure changes as pro duction processes change.