“My theory is to enjoy life, but the practice is against it.”

“Against spending time on theory, devote more time for practicals”

“In theory, there is no difference between theory and practice. But in practice, there is.”

“Before going back to college, i knew i didn't want to be an intellectual, spending my life in books and libraries without knowing what the hell is going on in the streets. Theory without practice is just as incomplete as practice without theory. The two have to go together.”

“Up there in that room, as I see it, is the reading and the thinking-through, a theory of rivers, of trees moving, of falling light. Here on the river, as I lurch against a freshening of the current, is the practice of rivers. In navigating by the glow of the Milky Way, the practice of light. In steadying with a staff, the practice of wood.”

“But her voice sounded wistful. It is one of her theories that a woman must never be jealous, never try to hold man against his will; but I could tell that she hadn't enjoyed seeing someone else bring father to life.”