“I wonder—?” whispered April Bell, her long eyes narrowed and dark. “I wonder what they really found?” “Whatever it is,” breathed Barbee, “the find d… - Jack Williamson

“I’m not a religious man, Mr. Barbee—I reject the supernatural, and my own rational philosophy is founded on proven science. But I still believe in hell.”
The dark man smiled.
“For every man manufactures his own private hell and peoples it with demons of his own creation, to torment him for his own secret sins, imagined or real. It’s my business to explore those personal hells and expose their demons for what they are. Usually they turn out to be much less terrifying than they seem.”

“I go where I wish,” Horn had said, there at the base of the cliff.
And the ancient Mr. Wu had replied, “So we think, so we think. In the middle of things we see no pattern. But as we look back and view the picture whole, we realize how men are moved about by forces they do not suspect. The pieces fall into place. The pattern is clear.”
In other words, when somebody moves, something has pushed.
Choice. Where had there been choice?

And introvert is one of the harmless scientific terms he used to use when he was really writing about witches.