In this dazzling collection of essays, covering a broad range of fields, from Darwinism and the global population explosion to bird watching, distinguished scientist and philosopher Sir Julian Huxley points out new frontiers for scientific research and reaffirms his belief in the intimate connection of the sciences, particularly biology, with the pressing social problems of the present and future. Huxley envisions new horizons for education and divinity within the framework of evolutionary humanism.