The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
再说,义就是匡正的意思,不能以下正上,必须是以上正下。 
在野外生存的最佳方法是保持冷静并清晰地思考。
Environmental responsibility should be integrated into every decision we make.
I try to explore the human soul through my work.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.