When, therefore, you see any one longing for many things, esteem him of all men the poorest, even though he possess all manner of wealth; again, when you see one who does not wish for many things, judge him to be of all men most affluent, even if he possess nothing. For by the condition of our mind, not by the quantity of our material wealth, should it be our custom to distinguish between poverty and affluence.
On Wealth and Poverty
St. John Chrysostom