Y.M. Do you believe that many of the dumb animals can think?
O.M. Yes – the elephant, the monkey, the horse, the dog, the parrot, the macaw, the mocking-bird, and many others. The elephant whose mate fell into a pit, and who dumped dirt and rubbish into the pit till bottom was raised high enough to enable the captive to step out, was equipped with the reasoning quality. I conceive that all animals that can learn things through teaching and drilling have to know how to observe, and put this and that together and draw an inference – the process of thinking. Could you teach an idiot of manuals of arms, and to advance, retreat, and go through complex field maneuvers at the word of command?
Y.M. Not if he were a thorough idiot.
O.M. Well, canary-birds can learn all that; dogs and elephants learn all sorts of wonderful things. They must surely be able to notice, and to put things together, and say to themselves, "I get the idea, now: when I do so and so, as per order, I am praised and fed; when I do differently I am punished." Fleas can be taught nearly anything that a Congressman can.
Y.M. Granting, then, that dumb animals are able to think upon a low plane, is there any that can think upon a high one? Is there one that is well up toward man?
O.M. Yes. As a thinker and planner the ant is the equal of any savage race of men; as a self-educated specialist in several arts she is the superior of any savage race of men; and in one or two high mental qualities she is above the reach of any man, savage or civilized!
Y.M. Oh, come! you are abolishing the intellectual frontier which separates man and beast.
O.M. I beg your pardon. One cannot abolish what does not exist.
Y.M. You are not in earnest, I hope. You cannot mean to seriously say there is no such frontier.
O.M. I do say it seriously. The instances of the horse, the gull, the mother bird, and the elephant show that those creatures put their this's and thats together just as Edison would have done it and drew the same inferences that he would have drawn. Their mental machinery was just like his, also its manner of working. Their equipment was as inferior to the Strasburg clock, but that is the only difference – there is no frontier.
Y.M. It looks exasperatingly true; and is distinctly offensive. It elevates the dumb beasts to – to—