In one of Plato's dialogues, Socrates warns a student that teachers can be dangerous. "You do not even know to whom you are committing your soul," Socrates says, "and whether the thing to which you commit yourself be good or evil."
That passage is a…
This content is available exclusively to Chronicle subscribers
Already a subscriber?
Log in now
Not a subscriber yet?
Subscribe now for instant access to this article and thousands of others, data tables, and interactive charts — all available exclusively for Chronicle subscribers. Plus your subscription includes weekly print or digital delivery of The Chronicle and The Review and the Chronicle iPad® Edition.Subscribe Today