The gift of portraying suffering and evil with unflinching truth, yet of conveying other feelings than those of mere horror, is reserved for few. Its rarity perhaps explains the rarity of great tragedy, of which it seems to be a condition that it shall truthfully show what is darkest in life, without leaving a final and dominant sense of gloom.

The great Greek writers possessed this secret. They are as sensitive to evil and suffering as any writer and fully as faithful in recording them. But whereas other men are simply depressed or disgusted or appalled, lose their vital forces, and gaze in paralysed fascination, these writers, in virtue of a sense which is more aesthetic than moral, are aware of tremendous issues, see in sordid suffering the agonies of a labouring universe, and feel awe and wonder, not mere disgust and distress, at what human beings suffer and endure.

That is why Homer leaves us with another feeling than depression, when he tells how Priam begged his son’s body from the man who killed him.

From R. W. Livingstone, On the Ancient Greek Literature