In my creative writing classes in college, I was told to use the active voice exclusively or most of the time. I find that it's hard to do, but I can see the improvement to the work. As I work with the active voice, I found that I can't, or shouldn't, use it exclusively. Also I am reading East of Eden, and Steinbeck uses a fair amount of the passive voice, and can still create great images. My question is when is it best to use which voice? Thanks!!