Bhojaprabandha 4

4

Then, in the course of time, a brahmin who had crossed to the other shore of the science of astrology and possessed skill in all branches of learning came into the royal assembly, said to the king, "Blessings!" and sat down. And he said, "Your Majesty, these people call me omniscient; therefore ask me anything."
The knowledge that is in one's throat should always be revealed by the wise; / by the knowledge that remains in the teacher or the book, a fool is deceived.