The art of modeling is to neglect the right things.
建模的艺术在于忽略正确的东西。
——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。
概率论是我们处理不确定性的唯一工具。
唯一能让你成为更好的人的是你自己。
注释：杜绝不良嗜好和欲望，这样才能免除负累。抑制不合理的行为，减少邪恶的行径，这样可以避免过失。远离酒色，这样才能保持自身清白。
Money is concerned only with what is common to all: it asks for the exchange value, it reduces all quality and individuality to the question: How much?
The worst enemy of literature is good taste.
Leadership is about creating a vision and then empowering others to make it a reality.