穿着粗布衣裳，吃着简单饭菜，这样的快乐哪里需要刻意寻求？
I want my books sold on airport bookstalls.
Food is the universal language that connects us all; producing it responsibly is our shared mission.
食物是连接我们所有人的通用语言；负责任地生产它是我们共同的使命。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
I write to find hope.
The power of causal reasoning is that it allows us to predict the effects of actions we have never taken.
自由是对自我设定法则的服从。