Letters 76.15

Therefore in the case of man also, it is not pertinent to the question to know how many acres he ploughs, how much money he has out at interest, how many callers attend his receptions, how costly is the couch on which he lies, how transparent are the cups from which he drinks, but how good he is. He is good, however, if his reason is well-ordered and right and adapted to that which his nature has willed.

Seneca, Letters to Lucilius 76.15, translated by Richard Mott Gummere