Karl Marx

Karl Heinrich Marx (Berlin German pronunciation: [kaːɐ̯l ˈhaɪnʀɪç ˈmaːɐ̯ks], 5 May 1818 – 14 March 1883) was a German philosopher, economist, sociologist, historian, journalist, and revolutionary socialist. His ideas played a significant role in the establishment of the social sciences and the development of the socialist movement. He is also considered one of the greatest economists in history.

• http://en.wikipedia.org/wiki/Karl Marx
• Wheen, F., 1999, Karl Marx: A life: W. W. Norton and Company, New York, 431p.