Psychology more than any other science has had its pseudo-scientific no less than its scientific period.

In Socrates' thought the two marks of individual self-consciousness appear; it is practical and it is social.

In the first place, Descartes stands for the most explicit and uncompromising dualism between mind and matter.

The prehistorical and primitive period represents the true infancy of the mind.

The dualism itself becomes a sort of presupposition or datum; its terms condition the further problem.

The fact that tradition hinders the individual savage from thinking logically by no means proves that he cannot think logically.

Psychology more than any other science has had its pseudo-scientific no less than its scientific period.