Criticism - however valid or intellectually engaging - tends to get in the way of a writer who has anything personal to say. A tightrope walker may require practice, but if he starts a theory of equilibrium he will lose grace (and probably fall off).

Suddenly Faramir stirred, and he opened his eyes, and he looked on Aragorn who bent over him; and a light of knowledge and love was kindled in his eyes, and he spoke softly. 'My lord, you called me. I come. What does the king command?

Help means ruin and saving means slaying.

A single dream is more powerful than a thousand realities.

Not idly do the leaves of Lorien fall

He [Bilbo] fought the real battle in the tunnel alone, before he ever saw the vast danger that lay in wait.

Somehow the killing of the giant spider, all alone by himself in the dark without the help of the wizard or the dwarves or of anyone else, made a great difference to Mr. Baggins. He felt a different person, and much fiercer and bolder in spite of an empty stomach, as he wiped his sword on the grass and put it back into its sheath.