“When teaching the course, I always imagined that one of my students would someday be US president. I would pause before entering the lecture room and ask myself, ‘Twenty years from now, when one of these students is the most powerful person on Earth, what will I regret not having taught? How will I consider today’s lecture a failure?’ Then I would think of the day’s message and make sure it was well understood by all.”

–Physicist Richard Muller, in an interview in Physics Today