Some people feel that humans have a right to eat other animals but not to trash the earth. They may choose veganism because a vegan's ecological footprint is light, but once they are not invested in eating animals, they are more likely to be willing to learn the details of what happens to them. That learning will encourage compassionate people to stick with a plant-based diet.

Mostly, I make sure to stay keenly aware of my own shortcomings so that I am more patient with others. It can be hard to see a friend order a cow-milk latte when almond or soy milk is available, knowing that the friend knows what dairy cows go through, how they mourn their babies, who have been carted off to veal crates so that we can steal their milk.

Come for the body, stay for the soul.

It is important to meet people where they are. It reminds me of yoga, to which people may flock for the physical benefits, often to find that the spiritual benefits match or even outweigh them.

Some of us seem to be born with a drive to try to make the world kinder. In my twenties, living in New York City, I worked in a soup kitchen every Sunday for many years, just trying to do my part. Then I read Animal Liberation and learned about factory farming and the killing of animals for oven cleaner and realized nobody needed my help as badly as the animals did.

Because I am all too human, I don't always do the right thing, so how can I expect others to perform perfectly on the issues that are my top priority? I don't mean that we shouldn't try to do our best, but judgment and recrimination are such heavy weights. I find that accepting that we are all fallible lightens my load.

I met my first turkey at an animal sanctuary in 2000. The sanctuary owner brought out a turkey named Olivia who had been rescued from a factory farm. As I sat on the grass and reached out to pet her, she climbed into my lap and fell asleep. I was flabbergasted and charmed.