在数学中，提出问题的艺术必须比解决问题更有价值。
In mathematics, the art of proposing a question must be held of higher value than solving it.
True innovation happens at the intersection of technology and necessity.
We never take our success for granted.
The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.
译文：即使处在平安的环境，也要时刻想到可能会有突如其来的危险。
用户界面中最重要的东西是反馈。
过去从未消逝，它甚至还未过去。
