Both are forces!
So are we!
They may be different manifestations, but fundamentally they are the same.
In fact, the very force that manifests itself in a mechanical instrument made by man is the identical substance that rules the organs, and charges the brain of our being. In the same manner that the force dissipates itself in the mechanical instrument made by man, and no longer gives motion to its parts, so the force that animates our being dissipates itself and is no longer capable of giving motion to our parts and organs.
As man's instruments are dependent upon many channels for their complete performance, so the human brain and body have their many dependencies that must fully and properly be nourished to maintain their power.
Each day science draws another veil from the mystery of life.
Our eye is but a chemical camera, that we have not only reproduced, but even improved upon.
Our voice is nothing but a vibration, that we have not only reproduced and improved upon, but whose minutest modulations we have recorded in innumerable duplications.
Our ear is but a drum, that carries and conveys to the brain the vibrations of our voice, and that function we have reproduced and even improved upon by the instrument we call the telephone.
The telegraphic system of the human body that communicates to the brain the conditions that the senses perceive, is no other than that which man has even improved upon by the transmission of an intelligible message to a far-distant land without the use of any apparent conductor. With the marvelous instrument, the telephone, man sends his voice around the world.