Seneca · On worldliness and retirement
Letters 19.7
If you retreat to privacy, everything will be on a smaller scale, but you will be satisfied abundantly; in your present condition, however, there is no satisfaction in the plenty which is heaped upon you on all sides. Would you rather be poor and sated, or rich and hungry? Prosperity is not only greedy, but it also lies exposed to the greed of others. And as long as nothing satisfies you, you yourself cannot satisfy others.
Seneca, Letters to Lucilius 19.7, translated by Richard Mott Gummere