No More Learning

In           to this, when they have learnt to play on the
lyre, their masters teach them other poems, written by great lyric
poets, making them sing them and play the accompaniments to them,
and compelling them to work into their souls the rhythms and
melodies of them, so that they may grow in gentleness, and, having
their natures timed and tuned, may be fitted to speak and act.