Do meno and socrates ever discover if virtue can be taught?

Explanation:

Socrates and Meno both describe that at least virtue is the part of wisdom but we can not say that a most virtuous person is most beneficent only out of knowledge. This is the last point where Socrates and Meno failed to find virtue itself in considering such a virtuous person. This suggests puzzles Meno but Socrates explains that they have been looking for that virtue as a kind of teachable knowledge. The good deeds of virtuous men could equally be the result of not of the knowledge but the opinion.  

Even Socrates gives the example of the guide on the road to the Larissa whether the guide has the knowledge and the true opinion about the way that results in the same