Thorstein Veblen  "The outcome of any serious research can only be to make two questions grow where only one grew before."
Charles Darwin "... the theory of Natural Selection ... implies no necessary tendency to progression."
Alfred Marshall “... facts by themselves are silent. Observation discovers nothing directly of the actions of causes, but only of sequences in time.”
Albert Einstein “It is the theory that describes what we can observe.”
Willam James  “Habit is thus the enormous fly-wheel of society, its most precious conservative agent.”
Douglass North "The development of more efficient economic organization is surely as important a part of the growth of the Western World as is the development of technology, and it is time it received equal attention."
Richard Nelson and Sidney Winter "routines play the role that genes play in biological evolutionary theory"
J Stanley Metcalfe "Evolutionary theory is a manner of reasoning in its own right ... biologists ... simply got there first"