——杜先生晚年在香港，先生为中国抗战.赈灾慈善做出巨大贡献，晚年依旧气度过人，毁掉所有欠条。

The best stories are the ones that are not afraid to confront the darkness.

Technological breakthroughs are not achieved overnight, they require long-term investment and patient accumulation.

人们雕刻东西，如果半途而废，即使是腐烂的木头也不能刻断；如果坚持到底，即使是金属或者石头都能雕空。