When we have decided that we ought to accept, let us accept cheerfully, professing our pleasure and letting the giver have proof of it in order that he may reap instant reward; for, as it is a legitimate source of happiness to see a friend happy, it is a more legitimate one to have made him so. Let us show how grateful we are for the blessing that has come to us by pouring forth our feelings, and let us bear witness to them, not merely in the hearing of the giver, but everywhere. He who receives a benefit with gratitude repays the first installment on his debt.