数学思想的真正考验是它能否激发进一步的思考。
The true test of a mathematical idea is its ability to inspire further thought.
A ship in port is safe, but that's not what ships are built for.
我总是试图以低于其内在价值的价格购买股票。
即使只有一毫粗疏的地方,就不能准确地认识事理,所以说一定要精确。不然,众说纷纭必会产生疑惑;仅存在一丁点杂念,便不能坚守事理,故而必须专心,否则在利害面前必定会经不起考验。