Literature Reference: The river water is clear and rippling, yet without sowing or reaping, how do you gather three hundred sheaves of grain? Without hunting, how do we see a badger hanging in your courtyard? Those gentlemen do not dine idly! Chop, chop, we cut the sandalwood, and place it by the riverbank. The river water is clear and rippling. Source from 'The Book of Songs: Wei Feng · Fa Tan'.