Feynman on Reading Difficult Things
Well, I asked him, “How can I read it? It’s so hard.” He said, “You start at the beginning and you read as far as you can get, until you are lost. Then you start at the beginning again, and you keep working through until you can understand the whole book.”
—Joan Feynman, Richard Feynman’s sister, recalling a discussion with her brother
Taken from No Ordinary Genius.