The importance of human life is that it may excel in achieving public and private goods, but in order to reach these goals it needs the plan or skilled knowledge. The original meaning of virtue is excellence in performing specific function, that is, competence in making and obtaining goods and realizing purposes within this world. The idea of classical virtue was reoriented. The pubic goods as well as personal objectives were subordinated to the purpose of happiness.In ancient Greek world virtue had a much wider and more neutral scope. It was applied to socially beneficial and heroic performance, but was also used to indicate a non-moral excellence in various skills like management. Even tools and commodities might be called virtuous whenev...