“The religion that is afraid of science dishonors God and commits suicide.”

“Imitation is suicide.”

“Envy is ignorance, Imitation is Suicide.”

“If we will not be mar-plots with our miserable interferences, the work, the society, letters, arts, science, religion of men would go on far better than now, and the heaven predicted from the beginning of the world, and still predicted from the bottom of the heart, would organize itself, as do now the rose, and the air, and the sun.”

“Beware when the great God lets loose a thinker on this planet. Then all things are at risk. It is as when a conflagration has broken out in a great city, and no man knows what is safe, or where it will end. There is not a piece of science, but its flank may be turned to-morrow; there is not any literary reputation, not the so-called eternal names of fame, that may not be revised and condemned. The very hopes of man, the thoughts of his heart, the religion of nations, the manner and morals of mankind, are all at the mercy of a new generalization. Generalization is always a new influx of the divinity into the mind. Hence the thrill that attends it.”

“The sinew and heart of man seem to be drawn out, and we are become timorous desponding whimperers. We are afraid of truth, afraid of fortune, afraid of death, and afraid of each other.”

“Every violation of truth is not only a sort of suicide in the liar, but is a stab at the health of human society.”