Inspiring future scientists takes great teachers who are often talented performers. The beauty of physics as an academic subject is that it lends itself well to awe-inspiring demonstrations and performances. Walter Lewin, an MIT physics professor and legendary lecturer, is one of those talented teachers and performers who squeezes out of physics every drop of excitement that can be conveyed to a lay audience. In this lecture, filled with some of his most famous demonstrations, he puts his life on the line to illustrate the principles of classical mechanics, explains why the sky is blue while clouds are white, and leaves the lecture hall on a rocket. The lecture does not require mathematical sophistication, which makes it accessible to middle school students, but it will inspire anyone to pursue physics.