真正的工艺在于让困难的事情看起来毫不费力。
True craftsmanship lies in making the difficult look effortless.
韧性是通过逆境建立的；不要害怕挑战，要从中学到东西。
人类是陆地动物，但也是海洋动物。
To do mathematics is to engage in an act of discovery and conjecture, intuition and inspiration.