Polonius in psychotherapy

In Polonius Shakespeare created a type we meet rather more often than we would like in modern psychotherapy. He thinks he possesses self-knowledge & yet lacks it. He is an expert on everyone else's life, yet is clueless on his own & on the lives of his children. He meddles & interferes in the affairs of others compulsively. He loves being on stage & has no sense of when to keep silent. Instinctively he takes the side of whatever is the authority of the day. He cannot think for himself. He extols the virtue of autonomy in his speech - "This above all: to thine own self be true," - yet he is unable to manifest it in his life.