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.

The part an actor played on stage was once written on a separate roll of paper.

The importance of certain problems concerning the facts will be inherent in the structure of the system.

Spencers god was Evolution, sometimes also called Progress.

A scientifically unimportant discovery is one which, however true and however interesting for other reasons, has no consequences for a system of theory with which scientists in that field are concerned.

Special emphasis should be laid on this intimate interrelation of general statements about empirical fact with the logical elements and structure of theoretical systems.

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