3. On the perfect condition of the organs of special sense.
4. On the quality of the nervous structure.
5. On the general physical constitution of the body.
6. On the evenly balanced equilibrium between the vital organs.
7. On the chemical elementary constituents that enter into the composition of the various tissues, especially the nervous tissue.
8. And lastly on the education, training, or culture.
9. I may add, suggestively, on the relative quantity and quality of the gray and white substance of the brain, etc., and perhaps on the depth of the sulci and the size of the convolutions and the general symmetry of the different lobes of the cerebrum, etc.
The brain of an idiot is not susceptible to culture or education. He has all the senses, but of an inferior and imperfect order; a brain insufficient in quantity and quality to be capable of acquiring anything. No mind can be formed. The idiot has not any intellect. Has he a soul?
Or supposing any portion of the brain is diseased and any one of the special senses ceases to act, as sight, hearing, or any part of the muscular tissue, and the intellect is impaired, either partially or wholly incapacitated, then has the soul suffered any damage, or does the soul remain intact?
Or supposing that a child is born blind, or that some one of the nerve centers controlling certain faculties of the brain is absent, and the education is necessarily limited to the remaining nerve centers, is the soul still complete and perfect?