时间在被小齿轮滴答作响时是死的；只有当钟停止时，时间才会复活。

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

有时候死扛下去总是会有机会的。

CRISPR是一种工具——我们如何使用它决定了它的意义。