The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.
当遇到反对意见时,即使它可能来自你的丈夫或孩子,也要努力用论证而不是权威去克服它,因为依靠权威的胜利是不可靠而虚妄的。
成功的关键是永不停止学习。
你是通往充实生活的道路上唯一的真正障碍。