רבי חנניה בן חכינאי

Rabbi Chananya ben Chakinai was a tanna. A passage in tractate Ketubot brings a striking account of his dedication to Torah learning: at the close of the wedding feast of Rabbi Shimon bar Yochai, he set out for the study hall. Rabbi Shimon asked him to wait so they could travel together, but he did not wait. He went and sat for twelve years in the study hall, and by the time he returned the paths of his town had so changed that he no longer knew the way to his own home.