Simonides of Ceos. One of the very first humanists and lover of lyrical poetry. The piece you've quoted only survives in modern day interpretations of Plato's Protagoras. I've only read it once, but it's one of my favorites.
"So long as he doesn't willfully do wrong, I give my praise and love to any man. But not even the gods can resist necessity."
[Text]
"So long as he doesn't willfully do wrong, I give my praise and love to any man. But not even the gods can resist necessity."