The main lessons I learned from my mother were monotheism; to marry a nice Jewish girl, to be a mensch. The first tends to be ignored in the religious world because the center of gravity is always  placed on some person instead of God. Monotheism means more than there is only one God. but also that by good actions we have access to Him. To marry a nice Jewish girl has very European connotations since in the USA such creatures do not exist. [However you can find such in Israel on odd occasions where girls sometimes have some idea of the responsibilities of womanhood.] To be a mensch is really best explained in the main cannon of the books of Musar. Chovot Levavot, Paths of the Righteous, Ways of the Just, Gates of Repentance.