action, and the closer he nevertheless brings this maxim of obedience thereto (in his own mind) to the strict duty (of justice), so much the more perfect is his virtuous action.

Hence it is only imperfect duties that are duties of virtue. The fulfilment of them is merit (meritum) = + a; but their transgression is not necessarily demerit (demeritum) = - a, but only moral unworth = o, unless the agent made it a principle not to conform to those duties. The strength of purpose in the former case is alone properly called virtue [Tugend] (virtus); the weakness in the latter case is not vice (vitium), but rather only lack of virtue [Untugend], a want of moral strength (defectus moralis). (As the word Tugend is derived from taugen [to be good for something], Untugend by its etymology signifies good for nothing.