She had not found this out by any elaborate self-study, for healthy people do not study themselves.

There was a decency of air that commanded more respect than it was then usual to yield to the nameless, a quietness of demeanor that denoted reflection and the habit of self-study and self-correction, together with a deference to others that was well adapted to gain friends.

and of what use is solitude, unless it be improved by patient thought, self-study and a communion with those great minds who became great by thinking.