Thing that separates him from great deal of big names in Physics is his passion for explaining complex things in simple manner.
Microsoft Research collected some his lectures (The Messenger Series given at Cornell University) in Tuva project. These lectures are definitely something everybody should take a look at.
- Law of Gravitation
- The Relation of Mathematics and Physics
- The Great Conservation Principle
- Symmetry in Physical Law
- The Distinction of Past and Future
- Probability and Uncertainty - The Quantum Mechanical View of Nature
- Seeking New Laws