过去是你记得的、你想象你记得的、你确信你记得的、或者你假装记得的。

The best way to learn mathematics is to do mathematics.

"The most important thing in empirical work is to be clear about the question you are trying to answer."

一本好的图画书应该是文字和图像的合作，彼此相互增强。

Poverty is not a character flaw—it’s a systemic trap.

Don’t let fear stop you from taking the first step.