"This bread I break was once the oat, This wine upon a foreign tree Plunged in its fruit; Man in the day or wind at night Laid the crops low, broke the grape's joy."

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Whatever a man has in superabundance is owed, of natural right, to the poor for their sustenance. So Ambrosius says, and it is also to be found in the Decretum Gratiani: The bread which you withhold belongs to the hungry: the clothing you shut away, to the naked: and the money you bury in the earth is the redemption and freedom of the penniless.

— Thomas Aquinas