In the 1960s, [Rene Dumont]'s views were so prized that leaders like President Julius Nyerere of Tanzania and President Kenneth Kaunda of Zambia adopted them as their own. Nyerere issued official documents on agriculture and education in 1967 and 1968 that were obviously inspired by his reading of Dumont's book. Kaunda made declarations on economics based on what Nyerere said. Both presidents invited Dumont to visit and write reports on their countries. Yet, Dumont insists, neither country ever followed his recommendations.