If observed facts of ...

If observed facts of undoubted accuracy will not fit any of the alternatives it leaves open, the system itself is in need of reconstruction.
 Talcott Parsons

Quotes from the same author

Sociology should... be thought of as a science of action-of the ultimate common value element in its relations to the other elements of action.
 Talcott Parsons
Science 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