Polonius- a good dad or a boor?

In Act I, Scene III, Polonius gives his son, Laertes, some advice before Laertes returns to France. Some of the advice is famous; some is pithy and shallow. Please choose one piece of advice and write it in "Shakespeare" and then paraphrase in your own words. After that, evaluate this advice. Is it helpful? Is it cliche? Have you heard something comparable in Judaism? Have you been given this advice from your parents? Are Polonius' words helpful or is he a horrible dad who does not know his own son well enough to give him real advice? Blog and respond by May 1, 2010!