Such an interpretation of the matter fails to do justice...

Such an interpretation of the matter fails to do justice either to the reality of the human spirit or to that of man himself. It is true that the body submits involuntarily to physiological law, but this observable reality does not lead to the conclusion that man is in his entirety chained to the laws of matter with the force of a mathematical equation.

There is certainly a close connection between the phenomena of the spirit and the cells of the brain; without having at its disposition a certain number of instruments and tools, the spirit cannot undertake any activity at all in this world. The brain cells, the nerves, and the chemical reactions of the brain, all count as the tools of the spirit by means of which it accomplishes its…