Seven Lectures on Physical Law by Richard Feynman

In a seven lecture series targeted at the layman, Richard Feynman opens a window on the nature of physical laws. In his inimitable way, he engages his audience and provokes thought about what we know and how we know it. I'm not uninitiated to the world of physics, and I learned a lot.

1. Law of Gravitation—An Example of Physical Law
2. The Relation of Mathematics and Physics
3. The Great Conservation Principles
4. Symmetry in Physical Law
5. The Distinction of Past and Future
6. Probability and Uncertainty—The Quantum Mechanical View of Nature
7. Seeking New Laws

(via kottke.org)