The chest will become broader, and by educating the voice, the speaker need seldom become hoarse, even by constant speaking. Instead of our ministers’ becoming consumptives by speaking, they may, by care, overcome all tendency to consumption. I would say to my ministering brethren: Unless you educate yourselves to speak according to physical law, you will sacrifice life, and many will mourn the loss of “those martyrs to the cause of truth,” when the facts in the case are that by indulging in wrong habits you did injustice to your selves and to the truth which you represented, and robbed God and the world of the service you might have rendered. God would have been pleased to have you live, but you slowly committed suicide. {4T 404.2}

Brystkassen vil udvides og ved at opøve sin stemme vil taleren som oftest kunne undgå hæshed selv ved en stadig brug af taleorganerne. I stedet for at pådrage sig lungetæring ved deres foredrag kan vore prædikanter ved forsigtighed overvinde ethvert anlæg til denne sygdom. Lad mig sige til mine brødre i prædikeembedet: medmindre I øver eder i at tale i overensstemmelse med de fysiske love, vil I opofre livet og mange vil sørge over tabet af disse "martyrer for sandhedens sag", medens faktum er, at I ved at følge forkerte vaner gjorde uret imod eder selv og den sag, I repræsenterede og berøvede Gud og verden den tjeneste, I kunde have ydet. Det vilie have behaget Gud, om I havde levet; men I begik langsomt selvmord.