This guy is a legend. I love him. The neatness of his lectures is just like the beauty of mathematics, and 18.02 is definitely my favorite MIT open course.####[['NULL', 'Instructor', 'POS'], ['lectures', 'Course_General_Feedback', 'POS'], ['MIT open course', 'Other', 'POS'], ['mathematics', 'Mathematical_Related_Concept', 'POS']]