What lines of reasoning is followed by prince of aaragon in making his choice of casket?

In "The Merchant of Venice," the Prince of Arragon chooses the silver casket based on his belief that he deserves the most attractive reward. He interprets the inscriptions on the caskets as a reflection of his own self-worth and status, believing that the silver casket, which states "Who chooseth me shall get as much as he deserves," aligns with his entitlement. However, his choice ultimately reveals his superficiality and misjudgment, as he fails to recognize that true value lies beyond material appearances.