【译文】 孔子说：“父母在世时，不要走远，必须远走时，一定要留下准确的地址。”

The ethical questions raised by CRISPR are not obstacles—they are essential conversations.

建筑是一种梦想，是对未来的梦想。

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.