'Now, Curdie, you must mind exactly what words I use, because although the right words cannot do exactly what I want them to do, the wrong words will certainly do what I do not want them to do. I did not say you can never know. When there is a necessity for your knowing, when you have to do important business with this or that man, there is always a way of knowing enough to keep you from any great blunder. And as you will have important business to do by and by, and that with people of whom you yet know nothing, it will be necessary that you should have some better means than usual of learning the nature of them. 'Now listen. Since it is always what they do, whether in their minds or their bodies, that makes men go down to be less than men, that is, beasts, the change always comes first in their hands--and first of all in the inside hands, to which the outside ones are but as the gloves. They do not know it of course; for a beast does not know that he is a beast, and the nearer a man gets to being a beast the less he knows it. Neither can their best friends, or their worst enemies indeed, see any difference in their hands, for they see only the living gloves of them. But there are not a few who feel a vague something repulsive in the hand of a man who is growing a beast. 'Now here is what the rose-fire has done for you: it has made your hands so knowing and wise, it has brought your real hands so near the outside of your flesh gloves, that you will henceforth be able to know at once the hand of a man who is growing into a beast; nay, more--you will at once feel the foot of the beast he is growing, just as if there were no glove made like a man's hand between you and it. 'Hence of course it follows that you will be able often, and with further education in zoology, will be able always to tell, not only when a man is growing a beast, but what beast he is growing to, for you will know the foot--what it is and what beast's it is. According, then, to your knowledge of that beast will be your knowledge of the man you have to do with. Only there is one beautiful and awful thing about it, that if any one gifted with this perception once uses it for his own ends, it is taken from him, and then, not knowing that it is gone, he is in a far worse condition than before, for he trusts to what he has not got.' 'How dreadful!' Said Curdie. 'I must mind what I am about.' 'Yes, indeed, Curdie.' 'But may not one sometimes make a mistake without being able to help it?' 'Yes. But so long as he is not after his own ends, he will never make a serious mistake.' 'I suppose you want me, ma'am, to warn every one whose hand tells me that he is growing a beast--because, as you say, he does not know it himself.' The princess smiled.