He continued to conduct research and publish books, including Man Unfolding (1972), The Survival of the Wisest (1973), World Population and Human Values: A New Reality (1981), and Anatomy of Reality: Merging of Intuition and Reason (1983).
Dia senantiasa melakukan penelitian dan menerbitkan buku, termasuk di antaranya Man Unfolding (1972), The Survival of the Wisest (1973), World Population and Human Values: A New Reality (1981), dan Anatomy of Reality (1983).