小说不仅是世界的镜子，更是塑造世界的锤子。
L-函数的算术是窥探数论灵魂的窗口。
We work with what is there because it has value.
The value of a mental process lies in its utility for the organism's adjustment to life.
解释：大旱之年收购船只，大水之年抛售船只并收购车辆，待到大旱之年再抛售车辆。
The ethical implications of gene editing must be considered at every step.
