i really enjoy listening to richard feynman talk about physics! luckily for us, a website was just launched by microsoft research and bill gates that shows a series of lectures given by feynman at cornell university in 1964! this was the year before he won the nobel prize in physics and he was as lively and energetic as ever!!
i love watching him speak because he doesnt use unnecessary jargon, he's relaxed, he's understandable, he speaks comfortably, and his voice reminds me of the older generations of my family who i am very far away from right now.
when you have some extra time, go enjoy listening to some feynman lectures!!