If you reflect, first, that the part of the soul that is forcibly controlled in our private misfortunes and that hungers for the satisfaction of weeping and wailing, because it desires these things by nature, is the very part that receives satisfaction and enjoyment from poets, and, second, that the part of ourselves that is best by nature, since it hasn't been adequately educated either by reason or habit, relaxes its guard over the lamenting part when it is watching the sufferings of somebody else.