Techne and Praxis

Aristotle's classification of Techne as Theoretical, not Practical, is based on his distinguishing Making from Doing.  However, he does not explain why Making is not a kind of Doing, from which it would follow that Techne is a special case of Praxis.  Now, in some places, it seems that the grounds for the distinction is that Doing is an interpersonal relation, while Making is a relation between a person and something inert.  However, expressions like 'knowing how to treat others' suggest that Skill cannot be reduced to an inhuman process.  Indeed, insofar as the Nichomachean Ethics aims at the cultivation of Virtue, i. e. at character-building, Aristotle's distinguishing of Techne from Contemplation and Practical Virtue is itself a product of Know-How.  Nevertheless, the contemporary reputation of Techne as both intellectually and morally deficient reflects that Aristotle's classifications of Mental powers have survived better than has his Cosmology.