The idea that we can actually have an impact on places more or less instantly, too, by responding in some way or not responding, I think, also makes it true.

We need to learn how to capture and kill wild fish humanely - or, if that is not possible, to find less cruel and more sustainable alternatives to eating them.

In appropriate circumstances we are justified in using humans to achieve goals (or the goal of assisting animals).

The future of the world depends on how well we meet it.

If you're buying animal products and can go to the farm and actually see how the animals are looked after, yes, that's an important point. That's definitely the best way of assuring yourself that the animals are being well treated.

To turn the other cheek is to teach would-be cheats that cheating pays.

It is an indication of the extent to which people are now isolated from the animals they eat that children brought up on storybooks that lead them to think of a farm as a place where animals wander around freely in idyllic conditions might be able to live out their entire lives without ever being forced to revise this rosy image.