Truth does govern our business, and there are no failures nor reverses; God directs our business in Truth and the power of right thought regulates everything.   Mary Baker Eddy    (Oakes, Richard, Course In Divinity and General Collectanea, p.265)

2.

We cannot retain the old positions diametrically opposite to metaphysical science, and conquer disease with mind. And because physics must eventually yield to metaphysics, it will keep the old schools fighting science for the next century. Ignorance, superstition, or avarice will shut the door on health and harmony not obtained through their systems. When there were fewer doctors and less thought bestowed on sanitary subjects there were better constitutions and less disease.   (Eddy, Mary Baker, Science and Health, 1st ed., p.341)

1.

Faith is all that ever made a drug remedy the ailments of a man. Mortal mind is belief, the immortal is understanding, the latter is Spirit, the former personal sense; we must learn to hold immortal and mortal mind or belief separate. The cause and cure of disease is solely mental, and to understand this renders mind less productive of disease, and able to destroy it. Matter has neither action nor sensation of its own; mind moves the body, and feels for it.  (Eddy, Mary Baker, Science and Health, 1st ed., p.341)

There is no dreaded future and no clouded past.  Admit only thoughts that you wish externalized.   Mary Baker Eddy    (Oakes, Richard, Course In Divinity and General Collectanea, p.265)

If evil is as real as good, error is as real and immortal as Truth. What we name diseased action is discord, but harmony is the reality of being; hence the former is a belief only, and not the Truth of being; if death is as real as Life, immortality is a myth, and if pain is as real as the absence of pain, it will be immortal, and harmony is not the order of being. Personal sense discords, and is therefore a belief only; matter has no sensation; the action proceeding from Soul is harmonious and eternal.  (Eddy, Mary Baker, Science and Health, 1st ed., p,340)

Under extreme cold, heat, fatigue, etc., we say, the body suffers, but this is belief only, and not the Truth of being; matter cannot suffer, mind alone suffers, and not because we have transgressed a law of nature, matter, but a law of belief. Our proof is, that if you destroy the belief in regard to the suffering, it disappears, and the effect of what you term broken law, producing catarrhs, fevers, consumptions, etc., goes with the belief. A lady whom we cured of consumption, breathed with great difficulty when the wind was east; we sat silently by her side a few moments, and her breath came gently, the inspirations becoming deep and natural; we then requested her to look at the weather-vane; she saw it was due east; the wind had not changed, but her difficult breathing had gone; therefore it was not the wind that produced it, and our explanations broke this mental hallucination, and she never suffered again from east winds.  (Eddy, Mary Baker, Science and Health, 1st ed., p.337-338)

Our rightful heritage is satisfaction, for God supplies all our needs.  Mary Baker Eddy    (Oakes, Richard, Course In Divinity and General Collectanea, p.265)

Do not care who thinks about you nor what they think.  All true thoughts are from God and are good.  There are no other thoughts for God has no opposite.  God’s grace is sufficient for every need; and we must know that good thoughts are power, and evil thoughts are powerless when met by Truth.   Mary Baker Eddy   (Oakes, Richard, Course In Divinity and General Collectanea, p.265)