We see monomaniacs all over the country. They are frequently sane upon every subject but one. The reason of this is that one organ [part] of the mind was specially exercised while the others were permitted to lie dormant. The one that was in constant use became worn and diseased, and the man became a wreck. God was not glorified by his pursuing this course. Had he exercised all the organs equally, all would have had a healthy development; all the labor would not have been thrown upon one, therefore no one would have broken down.—Testimonies for the Church 3:33, 34 (1872). {2MCP 442.3}

Vi ser monomaner (sygeligt ensidige mennesker) overalt i landet. De er tit normale på alle punkter på eet nær. Grunden hertil er, at det ene sindsorgan har været særlig meget brugt, medens de andre har fået lov til at ligge i dvale. Det ene, som var i stadig anvendelse, blev udmattet og sygelig og manden blev et vrag. Gud blev ikke æret ved, at han fulgte denne fremgangsmåde. Havde han givet alle organer ligelig øvelse, ville alle have fået en sund udvikling; alt arbejde ville ikke være blevet lagt på det ene og intet organ ville være brudt sammen. — Vidnesbyrd for menigheden 3:33, 34 (1872).