The winter edition of The Missouri Review includes found letters from Laurence Olivier to young actors. These letters show Olivier as generous enough with his time to respond to letters (which is more than I could see any famous actor doing today), and he gives his honest opinions about acting. I'm not sure how a Shakespeare scholar or an acting professor would take the following quote about playing the role of Hamlet, but I think it's one of the most refreshing pieces of craft advice I've heard in a long time:

"I would not plumb too far into psychological depths if I were you. It is simply a play about a man who could not make up his mind. If you start worrying about why he could not do this you are almost sure to get involved in a great number of readings and innuendos which will be completely perplexing to the public; he just can't and you must just feel that he can't, that's all."