This chapter outlining the basic assumptions behind the forms of current thinking about the mind that most clearly present the mind as a societal entity, often in continuation of Hegel and Marx. Man is a social being. Animals other than humans live in groups or flocks, some animals even have a division of labour, and some species can hand down certain behaviours that are not coded in their genetic material over a span of generations. A line of work in socio-cultural psychology has developed in continuation of Hegel and Marx, which is based on the fact that man is a social being. Social reality is historically changeable, open to multiple interpretations, and in contrast to physical reality it is negotiable. Of course, it is not just the 'city' that is 'man's teacher' – not even the 'city' in the modern sense of socially organized education through the school system – but also the family.