一个数学家的真正价值在于他们留下的问题。
The true value of a mathematician lies in the problems they leave behind.
A good ad should be like a good sermon; it must not only comfort the afflicted, but also afflict the comfortable.
Die Hoffnung ist der Schlüssel zum Leben.
你不需要完美来激励别人。让人们从你如何处理你的不完美中获得灵感。
The most important tool in science is not the microscope, but the mind.