There are some things so serious you have to laugh at them.
The fool doth think he is wise, but the wise man knows himself to be a fool.
数学的美只向更有耐心的追随者展示。
创新不是目的,解决真实问题才是。
The past is a puzzle, and we are all trying to piece it together.
最好的插画是那些为读者的想象力留出空间的。