Dear Kartik, I think you have got me a bit wrong. By "vidya's ego" Sri Ramakrishna did not mean that Sri Sankaracharya was proud of his knowledge. What he meant was vidya with respect to/or against avidya. He meant the "ripe ego", "paka ami", which means ego which is totally surrendered to the Absolute. No hard feelings, ok! yours sincerely Jagannath