In the nipple terminate vivid nerves which flash their very powerful vibrations through the mouth of the child and deep into its four great poles of being and knowing.

Even the nipples of the man are gateways to the great dynamic flow: still gateways.
Touch, taste, and smell are now active in the baby.

And these senses, so-called, are strictly sensations.

They are the first term of the child's mental knowledge.

And on these three _cerebral_ reactions the foundation of the future mind is laid.
The moment there is a perfect polarized circuit between the first four poles of dynamic consciousness, at that moment does the mind, the terminal station, flash into cognition.