He is not poor who has enough of things to use.
If it is well with your belly, chest and feet,
the wealth of kings can give you nothing more.

[Pauper enim non est, cui rerum suppetit usus.
si ventri bene, si lateri est pedibusque tuis, nil
divitiae poterunt regales addere maius.]

Horace (65-8 BC) Roman poet and satirist [Quintus Horacius Flaccus]

Epistles, Book 1, Epistle 12, l. 4 (c. 20 BC and 14 BC)