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

Feeling is the consciousness of the resulting conditions - of success, failure, equilibrium, compromise or balance, in this continuous rivalry of ideas.

All along we find that social life - religion, politics, art - reflects the stages reached in the development of the knowledge of self; it shows the social uses made of this knowledge.

Plato stands for the union of truth and goodness in the supreme idea of God.

The development of the meaning attaching to the personal self, the conscious being, is the subject matter of the history of psychology.

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

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