I prefer to supervise the whole operations of the government myself rather than entrust the public business to subordinates, and this makes my duties very great.

Psychology must be based on observable phenomena, not abstractions.

信心是对积极结果的期待。

你必须对自己的能力有信心，然后足够坚强地坚持到底。

追求数学真理需要直觉和严谨。

I'm not a role model, I'm a cautionary tale.