The cat does not merely experience contentment, he exudes it. You cannot be in the presence of a contented cat and not have some of that contentment … - Jeffrey Masson

Perhaps if we had realized they are birds, with all the wonderful characteristics of birds, we would have paid closer attention to the ways in which chickens can enchant us. Take dust-bathing, for example. We call it a bath because the chicken finds a small indentation of dry earth and then proceeds to immerse herself in it as into a warm bath. The earth cleans her feathers. The first time I saw a chicken taking a dust bath, stretching out one iridescent wing and holding it up to the sunshine, then settling into the warmth of the afternoon only to fly effortlessly to a tree to roost in the evening, I was astonished.

First, the eight rules of tolerance: 1. Stay out of the way. 2. Don't pick a fight. 3. If challenged, walk away. 4. Avoid eye contact. 5. If your enemy is diurnal, learn to be nocturnal. 6. Vice versa. 7. Possess nothing the other wants. 8. Draw the line at hurting kids: I will fight to the death.
After tolerance is achieved comes play. Here are the nine rules of play: 1. Know when to quit. 2. Learn how to handicap. 3. Learn what frightens the other (cat claws). 4. Don't let it get to you. It's just a game; you mustn't take it seriously (cats have trouble with this one—escalation is always a risk in cat games). 5. Don't eat your playmate. 6. Pay attention to the signals on the other side—for instance, “enough” and “quit.” 7. Don't suddenly change the rules. 8. Don't be a sore loser. 9. Remember: It's only a game.
And if play succeeds, we can move on to the eight rules of friendship: 1. Learn the rules of your opposite number. 2. Recognize that danger is no longer relevant. 3. Take your time. 4. One step at a time. 5. Apologize often by learning the other's words, gestures, sounds, or postures for “I'm sorry.” 6. Acknowledge mistakes. 7. Make the offer of friendship more than once. 8. Express curiosity about what the other is like.

I do not find it surprising that the Jains, the Buddhists, and the Hindus have all taken seriously the lives of others. The ability to imagine ourselves into the minds and bodies of “others”—whether humans we term different from us (Down syndrome children; Alzheimer sufferers; the so-called mentally ill) or the animals we use for our food—is of central importance because the failure to do so is precisely what led to the horrors of Auschwitz. So, when people ask, Have you nothing more important to think about? the answer is: There is nothing more important to think about than the heart of empathy, which in the final analysis is nothing other than the ability to love. Becoming a vegan is simply one manifestation of that love.