Clifford D. Simak Quote

He had acted on an impulse, with no thought at all. The girl had asked protection and here she had protection, here nothing in the world ever could get at her. But she was a human being and no human being, other than himself, should have ever crossed the threshold.
But it was done and there was no way to change it. Once across the threshold, there was no way to change it.

Ch. 16 - Way Station (1963)