Among the little captives of the Simian race who spend their lives in iron prisons to gratify the cruelty of man, and not to expiate some crime committed or inherent, I have many little friends to whom I am attached, and whose devotion to me is as warm and sincere, so far as I can see, as that of any human being. I must confess that I cannot discern in what intrinsic way the love they have for me differs from my own for them. I cannot see in what respect their love is less divine than is my own. I cannot see in what respect the affections of a dog for a kind master differ from those of a child for a kind parent, nor can I see in what respect the sense of fear for a cruel master differs from that of a child for a cruel parent. It is mere sentiment that ascribes to those of a child a higher source than the same passions in the dog--the dog could have loved or feared another master just as well; and filial love or fear would have reached out its tendrils just as far with all the ties of kindred blood removed. It has been said that one is able to assign a definite reason _why_, and that the other is a vague impulse; but I am too obtuse to understand how reason actuates to love, and instinct to a mere attachment. I cannot believe that in the essential and ultimate nature of these passions there can be shown any real difference. Whether it be reason or instinct in man, the affections of the lower animals are actuated by the same motives, governed by the same conditions, and guided by the same reasons as those of man. I shall not soon forget some of my monkey friends, and I am sure they will not forget me; for I see them sometimes after months of absence, and they usually recognise me at sight and show every sign of pleasure at my return. CHAPTER X. The Capuchin Vocabulary--What I have Found--What I Foresee in it.