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.

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

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

The reason of the close concurrence between the individuals progress and that of the race appears, therefore, when we remember the dependence of each upon the other.

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

Heredity provides for the modification of its own machinery.