I have so much respect for professor Gilbert Strang. He's at such an advanced age in these videos yet he can still give such great lectures. In fact it's 2018 and he still is giving lectures!####[['professor Gilbert Strang', 'Instructor', 'POS'], ['lectures', 'Course_General_Feedback', 'POS'], ['videos', 'Course_General_Feedback', 'POS']]