The hypothesis may be put forward, to be tested by the s subsequent investigation, that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other. – Talcott Parsons
But the scientific importance of a change in knowledge of fact consists precisely in j its having consequences for a system of theory. – Talcott Parsons
The implications of these considerations justify the statement that all empirically verifiable knowledge even the commonsense knowledge of everyday life – involves implicitly, if not explicitly, systematic theory in this sense. – Talcott Parsons
The conception that, instead of this, contemporary society is at or near a turning point is very prominent in the views of a school of social scientists who, though they are still comparatively few, are getting more and more of a hearing. – Talcott Parsons
From Jefferson to Jackson to Lincoln to FDR to Reagan, every great president inspires enormous affection and enormous hostility. Well all be much saner, I think, if we remember that history is full of surprises and things that seemed absolutely certain one day are often unimaginable the next. – Jon Meacham