Marxists have some way of analyzing the development of affairs which enables them to judge far in advance of scientific thinkers what the trend of social and economic development is to be.

Political activism
Arriving in Cambridge as a Catholic Bernal became a socialist as a result of a long night arguing with a friend. (1965). 0143.

John Desmond Bernal[pronunciation?]FRS (10 May 1901 – 15 September 1971) was one of the United Kingdom's most well-known and controversial scientists.