The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.
母亲的心是一个深渊，在它的最深处你总会得到宽恕。
人は、自分が生きるために、他人を殺す。
The more you know, the more you realize you don't know.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
成功是对任何曾经怀疑你的人最好的报复。