A multiple personality is in a certain sense normal.

No very sharp line can be drawn between social psychology and individual psychology.

What gives it its human character is that the individual through language addresses himself in the role of the others in the group and thus becomes aware of them in his own conduct.

A multiple personality is in a certain sense normal.

In wartime we identify ourselves with the nation, and its interests are the interests of our primal selves.

The self has the characteristic that it is an object to itself, and that characteristic distinguishes it from other objects and from the body.

The intelligence of the lower forms of animal life, like a great deal of human intelligence, does not involve a self.