“World of a Thousand Colors,” Robert Silverberg, 1957 – A ruthless opportunist adept at assuming the identities of others is determined to become a finalist in a competition being held on the mysterious World of a Thousand Colors, a world that appears to value empathy.
Comments: Read in The Great SF Stories #19.
Author: Wikipedia: “Robert Silverberg (born January 15, 1935) is an American author, best known for writing science fiction. He is a multiple winner of both Hugo and Nebula awards. He is a 1999 inductee into the Science Fiction Hall of Fame.”