We got hooked on grain-fed meat just as we got hooked on gas guzzling automobiles. Big cars made sense only when oil was cheap; grain-fed meat makes sense only because the true costs of producing it are not counted.

We'll learn fear might not mean 'stop'; personally, I've come to believe fear usually means 'go.' It always means listen closely.

We can't see ahead of time what actions are going to be the ones that move history in dramatic ways.

There are surprising turning points; there is the straw that breaks the camel's back, and you never know if your action could be the straw.

Fear doesn't have to stop us.

Every aspect of our lives is, in a sense, a vote for the kind of world we want to live in.

I had left graduate school, determined that I wasn't going to do anything else to "save the world" until I understood how I could get at the underlying causes of deepening suffering. To do that, I had to start by admitting that I didn't know.