/lit/ - Literature

Is there anyone who still argues that virtue is sufficient for happiness/a good life? If not, why not?

A bunch of ancient philosophical schools seem to be at least somewhat sympathetic to the idea, with Stoics endorsing a version of it, on some interpretations Cynics do so as well, and even "Socrates" in Plato's certain dialogues (eg Euthydemus) seems to commit to it. And although Aristotle and Cicero don't endorse it, Aristotle's views are not that far off and Cicero certainly considers it a plausible thesis.

So, did everyone just stop considering this as a serious idea? If so, is there ant development in history of philosophy that could explain such a shift?