Clifford D. Simak was the most charming of John W. Campbell's writers. And he was a very bad writer at one time, authoring The Cosmic Engineers .
But Campbell had seen something in him, or he had seen something in Campbell, and bit by bit he hauled himself up by his bootstraps in a truly heroic effort.
there wasn't an evil bone in his body, and it show in his work. He was an ornament to the field...