how persuasice is claudius' argument regarding hamlet's prologed mourning?

Claudius asks Hamlet why he is still so gloomy. Hamlet’s replies are evasive, cynical, and punning. He declares that his grief upon losing his father still deeply affects him. Claudius goes into a speech about the unnaturalness of prolonged grief; to lose one’s father is painful but common, he says, and Hamlet should accept this as nature’s course. He expresses a wish that Hamlet remain with them in Denmark instead of returning to Wittenberg, where he is a student, and when Gertrude seconds this wish, Hamlet agrees.