Perhaps it is historically true that no order of society ever perishes save by its own hand.
John Maynard KeynesI believe myself to be writing a book on economic theory which will largely revolutionize - not, I suppose, at once but in the course of the next ten years - the way the world thinks about economic problems.
John Maynard KeynesA conventional valuation which is established as the outcome of the mass psychology of a large number of ignorant individuals is liable to change violently as the result of a sudden fluctuation of opinion due to factors which do not really make much difference to the prospective yield; since there will be no strong roots of conviction to hold it steady.
John Maynard Keynes