The worth of a psychological theory is measured by its usefulness.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

My motto has always been: A career open to all talents, without distinctions of birth.

生活就是创造你自己。

The way to succeed is to double your failure rate.

林业实践的创新是平衡经济增长和环境保护的关键。

The most sustainable architecture is the one that is loved and maintained by its users.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

You can fool all the people some of the time, some of the people all the time, but you cannot fool all the people all the time.