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

But the scientific importance of a change in knowledge of fact consists precisely in j its having consequences for a system of theory.

It is that of increasing knowledge of empirical fact, intimately combined with changing interpretations of this body of fact - hence changing general statements about it - and, not least, a changing a structure of the theoretical system.

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.

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.

Empirical interest will be in the facts so far as they are relevant to the solution of these problems.

The functions of the family in a highly differentiated society are not to be interpreted as functions directly on behalf of the society, but on behalf of personality.