vi:27 Since the author's discovery of the might of Truth in vii:1 the treatment of disease as well as of sin, her system has been fully tested and has not been found wanting; but vii:3 to reach the heights of Christian Science, man must live in obedience to its divine Principle. To develop the full might of this Science, the discords of corporeal sense vii:6 must yield to the harmony of spiritual sense, even as the science of music corrects false tones and gives sweet con- cord to sound. vii:9 Theology and physics teach that both Spirit and matter are real and good, whereas the fact is that Spirit is good and real, and matter is Spirit's oppo- vii:12 site. The question, What is Truth, is answered by demonstration, by healing both disease and sin; and this demonstration shows that Christian healing con- vii:15 fers the most health and makes the best men. On this basis Christian Science will have a fair fight. Sickness has been combated for centuries by doctors using ma- vii:18 terial remedies; but the question arises, Is there less sickness because of these practitioners? A vigorous "No" is the response deducible from two connate vii:21 facts, - the reputed longevity of the Antediluvians, and the rapid multiplication and increased violence of diseases since the flood. vii:24 In the author's work, RETROSPECTION AND INTROSPEC- TION, may be found a biographical sketch, narrating experiences which led her, in the year 1866, to the dis- vii:27 covery of the system that she denominated Christian Science. As early as 1862 she began to write down and give to friends the results of her Scriptural study, for vii:30 the Bible was her sole teacher; but these compositions were crude, the first steps of a child in the newly dis- covered world of Spirit. ix:1 She also began to jot down her thoughts on the main subject, but these jottings were only infantile ix:3 lispings of Truth. A child drinks in the outward world through the eyes and rejoices in the draught. He is as sure of the world's existence as he is of his own; yet ix:6 he cannot describe the world. He finds a few words, and with these he stammeringly attempts to convey his feeling. Later, the tongue voices the more definite ix:9 thought, though still imperfectly.