  Sober argues that, even if we accept an evolutionary approach to human behaviour, there is no particular reason to think that evolution would have made humans into egoists rather than psychological altruists (see also Schulz 2011). On the contrary, it is quite possible that natural selection would have favoured humans who genuinely do care about helping others, i.e., who are capable of ‘real’ or psychological altruism.  Suppose there is an evolutionary advantage associated with taking good care of one's children—a quite plausible idea. Then, parents who really do care about their childrens' welfare, i.e., who are ‘real’ altruists, will have a higher inclusive fitness, hence spread more of their genes, than parents who only pretend to care, or who do not care. Therefore, evolution may well lead ‘real’ or psychological altruism to evolve. Contrary to what is often thought, an evolutionary approach to human behaviour does not imply that humans are likely to be motivated by self-interest alone. One strategy by which ‘selfish genes’ may increase their future representation is by causing humans to be non-selfish, in the psychological sense.