The new-born child does not realise that his body is more a part of himself than surrounding objects, and will play with his toes without any feeling that they belong to him more than the rattle by his side; and it is only by degrees, through pain, that he understands the fact of the body. And experiences of the same kind are necessary for the individual to become conscious of himself; but here there is the difference that, although everyone becomes equally conscious of his body as a separate and complete organism, everyone does not become equally conscious of himself as a complete and separate personality.