只要人类继续无情地摧毁较低级的生命，他们永远不会知道健康和和平。因为只要人类屠杀动物，他们也会相互杀戮。
Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve.
Every line you draw has consequences - spatial, structural, social.
A leader's job is to create more leaders, not more followers.