Read not to contradict and confute； nor to believe and take for granted； nor to find talk and discourse； but to weigh and consider.

Leadership means making tough decisions today for a better tomorrow.

唯一不变的是变化，持续的变化，不可避免的变化，这是当今社会的主导因素。

困难面前不退缩，责任面前不推诿。

I never saw a problem that I did not attempt to solve by mechanical means.

证明的目的是理解，而不仅仅是验证。

The most profound ideas in mathematics often arise from the simplest observations.