The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
释义：人的外貌可能相似，但内心和性格却各不相同。
我不和别人竞争，我和自己竞争。
我们都是自以为是的伪君子。