"When we fast we should understand what it means to be really hungry. If we want God to take account of our hunger we must feel for the hunger of others. If we hope for mercy we must show mercy. If we look for kindness we must show kindness. If we want to receive we must give. Only a shameless person would ask for himself what he refused to give to others. In showing mercy this should be the rule: show it in the same way, with the same generosity, with the same promptness as you would wish it to be shown to you."
Peter Chrysologus (AD 400-450), bishop of Ravenna, Sermo 43; PL 52, 320.
Lent, on a silver platter.