It dealt mostly with consequences.

They," she added after a pause, "were rather frightening." The professor glanced at her sharply.

Had she been worrying over this?
Had she connected it with that dreadful old man whom she called father?
But her face was quite untroubled as she went on.
"I think they've missed something, though," she said.

"There must be something more than the things they tabulate.

Some subtle force of life which isn't physical at all.