Scholars and intellectuals, teachers for sons of the wealthy. Arete = from aristos, meaning good or excellent. Also can be translated to mean essence . Even if one of the premises is doubtful, the conclusion does not need to be accepted. Look at the logical form to decide if the argument is valid - does the conclusion connect. You can"t search for what you know or what you don"t know because you already have that which you know, and you don"t know what you"re looking for when looking for that which you don"t know. At the time, was a major physicist. His work was largely rejected by the religious authorities. He moved to the netherlands, which was more protestant and liberal, for this reason. Invited by queen christina of sweden to give her philosophy lessons at 5am daily, then. Descartes came down with an illness and died.