They must be real people. And this means that every word in every line of speech must be accurate and full of some kind of meaning which stretches not only forward in the book but stems from before in the book.

But think of the glory of the choice! That makes a man a man. A cat has no choice, a bee must make honey. There's no godliness there.

Man has a choice and it's a choice that makes him a man.

You can't slice up morals.

Positano bites deep. It is a dream place that isn’t quite real when you are there and becomes beckoningly real after you have gone.

All of them had a restlessness in common.

...Samuel rode lightly on top of a book and he balanced happily among ideas the way a man rides white rapids in a canoe. But Tom got into a book, crawled and groveled between the covers, tunneled like a mole among the thoughts, and came up with the book all over his face and hands.