Pain is a gift. Humanity, without pain, would know neither fear nor pity. Without fear, there could be no humility, and every man would be a monster. The recognition of pain and fear in others give rise in us to pity, and in our pity is our humanity, our redemption.
If our inward griefs were written on our brows, how many who are envied now would be pitied. It would seem that they had their deadliest foe in their own breast, and their whole happiness would be reduced to mere seeming.
If a madman were to come into this room with a stick in his hand, no doubt we should pity the state of his mind; but our primary consideration would be to take care of ourselves. We should knock him down first, and pity him afterwards.