Letters 20.10

“May not a man, however, despise wealth when it lies in his very pocket?” Of course; he also is great-souled, who sees riches heaped up round him and, after wondering long and deeply because they have come into his possession, smiles, and hears rather than feels that they are his. It means much not to be spoiled by intimacy with riches; and he is truly great who is poor amidst riches.

Seneca, Letters to Lucilius 20.10, translated by Richard Mott Gummere