I'm happy not to have the forum filled with idiotic quizzes -- but this one's kind of interesting, and the author seems to actually be an expert on ancient Greek philosophy, so that's cool. But like PaleBlueDotty, I wouldn't consider myself at home in the marketplace either.
Your recommended philosophy-guru is ZENO OF CITIUM.
Key fact: He taught in a stoa, the Athenian supermarket, and hence founded the school of philosophy called Stoicism.
Must have: An interest in everyday life, for it is there that you learn life's big lessons.
Key promise: An ability to face anything, no matter how disastrous.
Key peril: To be "stoical" is to turn your back on passion.
Most likely to say: "If you have integrity, no-one can harm you."
Least likely to say: "Forget prudence! It won't help you anyway."
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Concepts create idols; only wonder comprehends anything. People kill one another over idols. Wonder makes us fall to our knees.
-- Saint Gregory of Nyssa