There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.

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.

"Doubt is useful for a while. We must all pass through the garden of Gethsemane. If Christ played with doubt, so must we."

Certification standards are meaningless without rigorous enforcement and transparency.

世界是一场伟大的舞蹈，我们是其中的舞者。