世界是残酷的，但它也是美丽的。

模型检查的挑战不仅在于发现错误，还在于理解它们为何发生。

For the past 33 years， I have looked in the mirror every morning and asked myself: 'If today were the last day of my life， would I want to do what I am about to do today？' And whenever the answer has been 'No' for too many days in a row， I know I need to change something.

Leadership in healthcare means making tough decisions today that will benefit patients tomorrow.

沉默是轻蔑最完美的表达。