孩子是成人之父。

引力解释了行星的运动，但它无法解释是谁让行星运动起来的。

You forget what you want to remember, and you remember what you want to forget.

出自先秦《荀子·修身》。利益少，但是道义多，这样的事要做。在利与义之间要舍利而取义，强调的是一种修身原则。

Small-scale farmers are the backbone of global aquaculture—they deserve our support.

The key to nudge is to make it easy for people to make better choices.