1. Time Magazine: 23, 62, 1954.
2. Hayakawa, S. I.: Language in Action, Harcourt, Brace Co., New York, 1941, 61.
3. Fromm, E.: Man for Himself, Rinehart and Co., New York, 1947.
4. Riesman, D.: The Lonely Crowd, Doubleday and Co., New York, 1953, 34.
5. Freud, S.: Totem and Taboo, Moffat Yard Co., New York, 1918, 242.