The difference between a moral man and a man of honor is that the latter regrets a discreditable act even when it has worked.

We will continue to challenge ourselves.

我从十五岁开始致力于学习，三十岁便能自立于社会了，四十岁对各种事理不再迷惑不解，五十岁懂得了自然界的规律，六十岁对听到的事情能领会贯通，并能辨别是非真伪，七十岁时做事能随心所欲，但又不会超出礼法的规范。

The oldest， shortest words—'yes' and 'no'—are those which require the most thought.