An' how the creatures an' things that live in them or on them are good for them, an' neither could live without the other.

An' then I'll show you my pets tame an' untamed, an' tell you how it's man that makes any creature wild--how easy they are to tame--an' how they learn to love you.

An' there's the life of the forest, the strife of it--how the bear lives, an' the cats, an' the wolves, an' the deer.

You'll see how cruel nature is how savage an' wild the wolf or cougar tears down the deer--how a wolf loves fresh, hot blood, an' how a cougar unrolls the skin of a deer back from his neck.
An' you'll see that this cruelty of nature--this work of the wolf an' cougar--is what makes the deer so beautiful an' healthy an' swift an' sensitive.

Without his deadly foes the deer would deteriorate an' die out.