... a practical problem can only be solved by action itself. When your practical problem is how to earn a living, a book on how to make friends and influence people cannot solve it, though it may suggest things to do. Nothing short of the doing solves the problem. It is solved only by earning a living.
If one wanted to depict the whole thing graphically, every episode, with its climax, would require a three-dimensional, or, rather, no model: every experience is unrepeatable. What makes lovemaking and reading resemble each other most is that within both of them times and spaces open, different from measurable time and space.