Most philosophers of the eighteenth century had very elementary ideas on the origin of societies. According to them, in the beginning Mankind lived in small isolated families, and perpetual warfare between them was the normal state of affairs. But, one day, realizing at last the disadvantages of their endless struggles, men decided to socialize. A social contract was concluded among the scattered families who willingly submitted themselves to an authority which - need I say? - became the starting-point as well as the initiator of all progress. And does one need to add, since we have been told as much at school, that our present governments have so far remained in their noble role as the salt of the earth, the pacifiers and civilizers of the human race? This idea dominated the eighteenth century, a period in which very little was known about the origins of Man; and one must add that in the hands of the Encyclopedists and of Rousseau, the idea of the 'social...