L-函数的算术是解开数论秘密的关键。
Fashion is a form of imitation and so of social equalization, but, paradoxically, in changing incessantly, it differentiates one time from another and one social stratum from another.
拯救犀牛的唯一方法是拯救它所生活的环境,因为它与数百万其他动植物物种之间存在相互依赖关系。
The world is a prison in which solitary confinement is preferable.
Aquaculture isn't the problem—it's part of the solution, if done right.