In mathematics, the journey from question to answer is often more enlightening than the answer itself.
在数学中,从问题到答案的旅程往往比答案本身更具启发性。
绘本是文字和图像之间的舞蹈——它们应该一起舞动。
二战前生活很简单。之后,我们有了系统。
改变生活:立即开始,华丽地去做,没有例外。
"In observational studies, we often have to rely on assumptions that are not directly testable."