inwardness

the choicest or most essential or most vital part of some idea or experience

the gist of the prosecutor's argument

preoccupation especially with one's attitudes and ethical or ideological values

the sensitiveness of James's characters, their seeming inwardness

the quality or state of being inward or internal

the inwardness of the body's organs

preoccupation with what concerns human inner nature (especially ethical or ideological values);, H.R.Finch

Socrates' inwardness, integrity, and inquisitiveness