Who should study philosophical questions? Anyone who has the time. Humans naturally love to think deeply about things. But it's shameful to study philosophy the way runaway slaves do. You should sit like you're in a theater — relaxed and focused. Listen to the tragic actor one moment, the musician the next. Don't act like a slave. As soon as a slave sits down, he praises the performance but keeps looking around nervously. The moment someone calls his master's name, the slave gets scared and loses focus.
To whom then does the contemplation of these matters (philosophical inquiries) belong? To him who has leisure, for man is an animal that loves contemplation. But it is shameful to contemplate these things as runaway slaves do; we should sit, as in a theatre, free from distraction, and listen at one time to the tragic actor, at another time to the lute-player; and not do as slaves do. As soon as the slave has taken his station he praises the actor and at the same time looks round; then if any one calls out his master's name, the slave is immediately frightened and disturbed.