Qutb al-Din had an insatiable desire for learning, which is evidenced by the twenty-four years he spent studying with masters of the time in order to write his commentary on the Kolliyāt. He was also distinguished by his extensive breadth of knowledge, a clever sense of humor and indiscriminate generosity. He was also a master chess player and played the musical instrument known as the Rabab, a favorite instrument of the Persian poet Rumi.