morals
I think this emphasis on morals (as seen throughout the document, not just here) is a direct result of Jefferson's goals of education (and likely that of the committee). He fundamentally sees education as what upholds the effectiveness of a democracy, and that is why he emphasizes ethical education. He hopes that his university aids in the proper carrying out of the governmental process, and he emphasizes this here for that reason. Still, it's interesting to see the lack of college's purpose as means for vocational education, at least in comparison to this purpose.