On the Belief in the Resurrection.
1. In the former book I indulged my longing to some extent, lest too sharp remedies applied to a burning wound might rather increase than assuage the pain. And as at the same time I often addressed my brother, and had him before my eyes, it was not out of place to let natural feelings have a little play, since they are somewhat satisfied by tears, soothed by weeping, and numbed by a shock. For the outward expression of affection is of a soft and tender nature, it loves nothing extravagant, nothing stern, nothing hard; and patience is proved by enduring rather than by resisting.
Source: On the Death of Satyrus (New Advent)