Pity must be shown without being felt

When you see someone weeping in sorrow, either because a child has gone on a journey, or because he has lost his property, beware that you be not carried away by the impression that the man is in the midst of external ills, but straightway keep before you this thought: "It is not what has happened that distresses this man (for it does not distress another), but his judgement about it." Do not, however, hesitate to sympathize with him so far as words go, and, if occasion offers, even to groan with him; but be careful not to groan also in the centre of your being.