Letters 59.13

Let us also act in the same way. Each man, according to his lot in life, is stultified by flattery. We should say to him who flatters us: “You call me a man of sense, but I understand how many of the things which I crave are useless, and how many of the things which I desire will do me harm. I have not even the knowledge, which satiety teaches to animals, of what should be the measure of my food or my drink. I do not yet know how much I can hold.”

Seneca, Letters to Lucilius 59.13, translated by Richard Mott Gummere