What is 'dip a living creature into the bath of burning pain'?
‘These creatures of mine seemed strange and uncanny to you as soon as you began to observe them, but to me, just after I make them, they seem to be indisputable human beings. It’s afterwards as I observe them that the persuasion fades. First one animal trait, then another, creeps to the surface and stares out at me….But I will conquer yet. Each time I dip a living creature into the bath of burning pain, I say: this time I will burn out all the animal, this time I will make a rational creature of my own. After all, what is ten years? Man has been a hundred thousand in the making.’
It is from Chapter 14 of The Island of Doctor Moreau.