The distinctive feature of the mission of Mary Baker Eddy, the Discoverer and Founder of Christian Science, is her revelation of the absolutely scientific, invariable, and demonstrable nature of Truth. Indeed, Mrs. Eddy revealed to humanity that Christianity must be Science and Science must be Christianity. Jesus on more than one occasion indicated this fact; and when he stated, "Ye shall know the truth, and the truth shall make you free," he iterated without a doubt what every religionist must at length realize, namely, the possibility of understanding and demonstrating in a truly scientific way the divine facts about God and about reality.
Mrs. Eddy, however, has pushed this teaching to its logical conclusion, and has proved to mankind that the truth about God and about man can be understood and demonstrated with certainty. Moreover, she has stated and proved that Truth always operates according to law and order, that Truth always has its own divine plan of operation.
In her textbook, "Science and Health with Key to the Scriptures," Mrs. Eddy writes (pp. 146, 147) "Divine metaphysics is now reduced to a system, to a form comprehensible by and adapted to the thought of the age in which we live." Is it logical to suppose that the rhythm of God's idea —of Truth's ideas:—operating in the infinite calculus of spiritual reality, partakes less of the nature of law than is manifested in the so-called human or physical sciences? It must be clear, even to the casual thinker, that this could not be so, but that, on the contrary, spiritual reality must inevitably be manifested humanly in the highest degree in divinely scientific processes of law, order, plan, and design.