My contribution to the crusade for the perpetuation of all life on Earth, indeed for the very tools for survival if the situation becomes more critical, has been the opportunity to put the case for conservation of Nature and natural resources over to the public in general, and also to present it to the great decision-makers of our time—the men and women who have such mighty power for good or evil, and on whose vision and actions the future of Man depends. I have been able to do this because of the dedicated support I have received from my colleagues in the World Wildlife Fund (WWF), and from our sister organization and scientific adviser, the International Union for Conservation of Nature and Natural Resources (IUCN), all working in close partnership.