I always told my students at Davis that they should read all the major poets in the English language from the Anglo-Saxon and Middle English on - it's not that huge a body of work. Just do it. And then become acquainted with continental poetry in translation and in one or more languages that you have learned to read. Look at the great poetic traditions of India and East Asia. And look at the songs and poems that pre-date the invention of writing. That's for starters.
(From an interview with Snyder conducted by Pam Jung and posted here.)
When I was in my twenties, my mentor Jazuo Watanabe told me that because I was not going to be a teacher or a professor of literature, I would need to study by myself. I have two cycles: a five-year rotation, which centers on a specific writer or thinker; and a three-year rotation on a particular theme. I have been doing that since I was twenty-five. I have had more than a dozen of the three-year periods. When I am working on a single theme, I often spend from morning to evening reading. I read everything written by that writer and all of the scholarship on that writer’s work.
If I am reading something in another language, say Eliot’s Four Quartets, I spend the first three months reading a section such as “East Coker” over and over again in English until I have it memorized. Then I find a good translation in Japanese and memorize that. Then I go back and forth between the two — the original in English and the Japanese translation — until I feel I am in a spiral that consists of the English text, the Japanese text, and myself. From there Eliot emerges.
(From a Paris Review interview with Oe, a snippet of which I found here.)
--David