manifestations of social organization, the sociologist can scarcely deal
adequately with the great problems of social organization and evolution
without constant reference to political science.

An important branch of political science is jurisprudence, or the
science of law. This, again, is closely related with sociology, on both
its theoretical and practical sides. Law is, perhaps, the most important
means of social control made use of by society, and the sociologist
needs to understand something of the principles of law in order to
understand the nature of the existing social order. On the other hand,
the jurist needs to know the principles of social organization and
evolution in general before he can understand the nature and purpose of
law.

(E) _Relations to Ethics._ [Footnote: For a full statement of my
views regarding the relations of sociology and ethics, see my article on
"The Sociological Basis of Ethics," in the _International Journal of
Ethics_ for April, 1910.] Ethics is the science which deals with the
right or wrong of human conduct. Its problems are the nature of morality
and of moral obligation, the validity of moral ideals, the norms by
which conduct is to be judged, and the like. While ethics was once
considered to be a science of individual conduct it is now generally
conceived as being essentially a social science. The moral and the
social are indeed not clearly separable, but we may consider the moral
to be the ideal aspect of the social.

This view of morality, which, for the most part, is indorsed by modern
thought, makes ethics dependent upon sociology for its criteria of
rightness or wrongness. Indeed, we cannot argue any moral question
nowadays unless we argue it in social terms. If we discuss the rightness