[you] "go to a great school not for knowledge
so much as for arts and habits; for the habit of attention, for
the art of expression, for the art of assuming at a moment's
notice a new intellectual posture, for the art of entering quickly
into another person's thoughts, for the habit of submitting to
censure and refutation, for the art of indicating assent or
dissent in graduated terms, for the habit of regarding minute
points of accuracy, for the habit of working out what is possible
in a given time, for taste, for discrimination, for mental courage
and mental soberness. Above all, you go to a great school for
self-knowledge."