The story
From a quiet heart is a continual feast, the translation of Proverbs 15:15 in the Coverdale Bible from 1535: :All the dayes of the poore are miserable, but a quyete herte is as a cotynuall feast.
Etymology from Wiktionary, CC BY-SA 4.0.
a contented mind is a perpetual feast
Today it means: Contentment derives from attitude more than circumstances. Full definition →