‘Darwinism and ideology’ considers the extraction of absolute ethical principles from the theory of evolution in post-Darwinian thought in areas such as Social Darwinism, sociobiology, and humanism. If the theory of evolution is not universally accepted one must assume that it is either due to ignorance of the arguments on which it rests, or else to the unpalatability of its conclusions. More than any other scientific theory, the theory of evolution reaches into hallowed areas of spiritual life. It is no longer easy to look to spiritual authority for a satisfying account of the ultimate issues of human existence: why are we here? and why does the world act so uncaringly?