Knowing one’s own good, then, would seem to be a kind of knowledge (though it admits of great variety), 150 and, according to the general opinion, he who knows and attends to his own affairs is prudent, while statesmen are busybodies, as Euripides says—
“What? was I wise, who might without a care
Have lived a unit in the multitude
Like any other unit? …
For those who would excel and do great things—”