Question: American Libertarian, political scientist, author, and columnist, Charles Murray, who was also involved with the cognitive elite of a society, those having higher intelligence levels and thus better prospects for success in life, published what book in 1984? 
Sentence (from "Cognitive elite"): They also propose that by removing race, gender or class as criteria the main criteria of success in academic and professional life is becoming primarily based on cognitive ability.
Relevant evidence: No