Perhaps one of the most important things you can do for human beings is wean them off an animal-based diet. It hardens the arteries and runs up our health-care costs. The last thing a poor person can afford is a heart attack or cancer or a stroke. And that's all linked to a meat-based diet. I think animal liberation is human liberation.

It's time to face facts: Most people stop being environmentalists when they sit down to eat.

Anybody who witnesses the suffering of animals and has a glimmer of hope of reducing that suffering can't take the position that it's all or nothing. We have to be pragmatic. Screw the principle.

Never doubt that one person can make a difference.

Pigeon racing is a lousy, greedy, and often unlawful activity. One thing that it is not is kind to birds.

Today, I marvel at the vegan foods in the supermarket, at the cruelty-free clothing choices in stores, and at the fantastic alternatives to dissection in schools, the modern ways to test medicines without killing rabbits and beagles, the many forms of entertainment involving purely human performers.

It is dangerous to engage in even the most innocuous-seeming discourse with the FBI/ Homeland Security/ a local detective.