Speech is the first great social function which he must learn, and with it all the varieties of verbal accomplishment--reading and writing.

This brings to the front the great method of all his learning--imitation.

In order to be social he must be imitative, imitative, imitative.

He must realize for himself by action the forms, conventions, requirements, co-operations of his social group.

All is learning; and learning not by himself and at random, but under the leading of the social conditions which surround him.