世界是一个非常令人困惑的地方，能够思考它是一种巨大的特权。
"The world is a very puzzling place, and it is a great privilege to be able to think about it."
The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices they would not have made had they seen what their choices involved.
简短的词是最好的,又短又古老的词最最好。
Do not fear to be eccentric in opinion， for every opinion now accepted was once eccentric.
Sustainability isn’t an option; it’s the only way forward.
