Author's Note 17
There are exceptions to this; and often those children who at first are most difficult to hear become the noisiest when they begin to raise their voices. But it I were to enter into all these details I should never make an end; every sensible reader ought to see that defect and excess, caused by the same abuse, are both corrected by my method. I regard the two maxims as inseperable -- always enough - never too much. When the first is well established, the latter necessarily follows on it.