德之不修,学之不讲,闻义不能徙,不善不能改,是吾忧也。
不修养品德,不讲习学问,听到正义不能追随,有缺点不能改正,这些都是我所忧虑的。
You get what you tolerate.
Mathematics is the language in which the universe is written.
言语是唯一能永恒的东西。
It is no use doing what you like;you have got to like what you do.
不要害怕失败,因为失败是成功的垫脚石。