What's a man to a horse, if the horse only knew it?
but the horse don't know it, an' there's jest where Man gets the advantage.
It's knowledge an' spirit that gives Man the rule over all the other animals.

Now, what we want is to eat the kind of things that will strengthen knowledge an' spirit an' self-control, because the first two ain't any account without the last; but there ain't no kind of food that's known that can do that.

If there is, I 'ain't never heard of it." Cephas dumped the whole mass of paste with a flop upon the mixing-board, and plunged his fists into it.

Sarah made an involuntary motion forward, then she stood back with a great sigh.
"But what we can do," Cephas proceeded, "is to eat the kind of things that won't strengthen the animal nature at the expense of the spiritual.

We know that animal food does that; we can see how it works in tigers an' bears.