Animals and plants, as they advance in the scale of life differentiate their feelings more and more highly; they record them better and recognise them more readily. They get to know what they are doing and feeling, not step by step only, nor sentence by sentence, but in long flights, forming chapters and whole books of action and sensation. The difference as regards feeling between man and the lower animals is one of degree and not of kind. The inorganic is less expert in differentiating its feelings, therefore its memory of them must be less enduring; it cannot recognise what it could scarcely cognise. One might as well for some purposes, perhaps, say at once, as indeed people generally do for most purposes, that the inorganic does not feel; nevertheless the somewhat periphrastic way of putting it, by saying that the inorganic feels but does not know, or knows only very slightly, how to differentiate its feelings, has the advantage of expressing the fact that feeling depends upon differentiation and sense of relation _inter se_ of the things differentiated—a fact which, if never expressed, is apt to be lost sight of. As, therefore, human discrimination is to that of the lower animals, so the discrimination of the lower animals and plants is to that of inorganic things. In each case it is greater discriminating power (and this is mental power) that underlies the differentiation, but in no case can there be a denial of mental power altogether. Opinion and Matter Moral force and material force do pass into one another; a conflict of opinion often ends in a fight. Putting it the other way, there is no material conflict without attendant clash of opinion. Opinion and matter act and react as do all things else; they come up hand in hand out of something which is both and neither, but, so far as we can catch sight of either first on our mental horizon, it is opinion that is the prior of the two. Moral Influence The caracal lies on a shelf in its den in the Zoological Gardens quietly licking its fur. I go up and stand near it. It makes a face at me. I come a little nearer. It makes a worse face and raises itself up on its haunches. I stand and look. It jumps down from its shelf and makes as if it intended to go for me. I move back. The caracal has exerted a moral influence over me which I have been unable to resist. Moral influence means persuading another that one can make that other more uncomfortable than that other can make oneself. Mental and Physical Pabulum When we go up to the shelves in the reading-room of the British Museum, how like it is to wasps flying up and down an apricot tree that is trained against a wall, or cattle coming down to drink at a pool! Eating and Proselytising