In one’s life. there are levels in the pursuit of study. In the
lowest level, a person studies but nothing comes of it, and he
feels that both he and others are unskillful. At this point he
is worthless. In the middle level he is still useless but is aware
of his own insufficiencies and can also see the insufficiencies of
others. In a higher level he has pride concerning his own ability,
rejoices in praise from others, and laments the lack of ability in
his fellows. This man has worth. In the highest level a man has
the look of knowing nothing.