A theoretical system does not merely state facts which have been observed and that logically deducible relations to other facts which have also been observed.
Talcott ParsonsIf there are four equations and only three variables, and no one of the equations is derivable from the others by algebraic manipulation then there is another variable missing.
Talcott ParsonsIf observed facts of undoubted accuracy will not fit any of the alternatives it leaves open, the system itself is in need of reconstruction.
Talcott ParsonsThe importance of certain problems concerning the facts will be inherent in the structure of the system.
Talcott ParsonsScience is intimately integrated with the whole social structure and cultural tradition. They mutually support one other-only in certain types of society can science flourish, and conversely without a continuous and healthy development and application of science such a society cannot function properly.
Talcott Parsons