Man wants to see nature and evolution as separate from human activities. There is a natural world, and there is man. But man also belongs to the natural world. If he is a ferocious predator, that too is part of evolution. If cod and haddock and other species cannot survive because man kills them, something more adaptable will take their place. Nature, the ultimate pragmatist, doggedly searches for something that works. But as the cockroach demonstrates, what works best in nature does not always appeal to us.
If 22 bushels (1,300 pounds) of rice and 22 bushels of winter grain are harvested from a quarter acre field, then the field will support five to ten people each investing an average of less than one hour of labour per day. But if the field were turned over to pasturage, or if the grain were fed to cattle, only one person could be supported per quarter acre. Meat becomes a luxury food when its production requires land which could provide food directly for human consumption. This has been shown clearly and definitely. Each person should ponder seriously how much hardship he is causing by indulging in food so expensively produced.
There are very few of us who remember the day, the moment, when our childhood ends. For most of us, the sun sets on our innocence gradually, sliding down over the western horizon like a toboggan run down over a long, steep slope. We are never really conscious of the moment we reach the bottom of the slope; we just know that one day we wake up and the toboggan ride is over.