We turn to Marx, therefore, not because he is infallible, but because he is inescapable.
Robert HeilbronerThe use of mathematics has brought rigor to economics. Unfortunately, it has also brought mortis.
Robert HeilbronerCapitalism is the only society in human history in which neither tradition nor conscious direction supervises the total effort of the community; it is the only society in which the future, the needs for tomorrow, are entirely left to an automatic system.
Robert Heilbroner