The Human Spirit by Kenneth E. Hagin

Science has spent millions of dollars to develop the physical body of man. Additional millions have been spent developing man's intellectual processes, which are a part of his soul. But we know so little and have done so little about developing the spirit of man.

However, man's spirit can be educated and improved just as his mind can be educated and improved. The spirit can be trained and built up just as the body can be built up. How? Through the study of God's Word.