You know the way the branches of a tree returns its sap to the root, where it grew from, or the rivers that pour streams to the sea, where its spring was supplied? that is the way the heart of a grateful man delights in returning a benefit received. Acknowledging his obligation with cheerfulness. Do not envy the benefactor, do not try and deny the benefit conferred, the buzz is in returning the benefit on time. Don’t get favours from selfish or greedy people though, the greediness of avarice is never satisfied.