Seneca · On pleasure and joy
Letters 59.11
What hinders us most of all is that we are too readily satisfied with ourselves; if we meet with someone who calls us good men, or sensible men, or holy men, we see ourselves in his description. Not content with praise in moderation, we accept everything that shameless flattery heaps upon us, as if it were our due. We agree with those who declare us to be the best and wisest of men, although we know that they are given to much lying. And we are so self-complacent that we desire praise for certain actions when we are especially addicted to the very opposite. Yonder person hears himself called “most gentle” when he is inflicting tortures, or “most generous” when he is engaged in looting, or “most temperate” when he is in the midst of drunkenness and lust. Thus it follows that we are unwilling to be reformed, just because we believe ourselves to be the best of men.
Seneca, Letters to Lucilius 59.11, translated by Richard Mott Gummere