The issue of my core belief system came up today and I wanted to mention that the way I see Torah is that what matters is "to be a mensch" midot tovot. Everything else is secondary. So I really do not care much how one comes to good midot.  This idea is based to some degree on the books of Musar [mediaeval books about morality] but also on the Gemara itself that says the commandments do have known reasons. But the Gemara does not give them. The later rishonim give the reasons for the commandments and they are in short--to be a mensch. But to be a mensch of course means a lot more than being a decent human being. So one does have to learn the basic core books of Musar to understand what being a mensch means.

Being a mensch should be common sense, but I guess that is no longer common.