Sympathy is a kind of fellow-feeling of the body and the object who is in trouble. Although Adam Smith gave a new meaning in his work ”The Theory of Moral Sentiments”, he did not show the right meaning of it. The course of sympathy is that the place of the body and the object changes from inequality objectively to equality subjectively. Sympathy for the body is a kind of happiness but not affliction. Now we are in the trouble of both showing sympathy to misfortune ones or not. As the virtue sympathy leads to the total of happiness added, it actively makes the society harmonious and accelerates it.