创新需要勇气，需要敢于打破常规。
Innovation requires courage and the willingness to break conventions.
It’s not the manager’s job to prevent risks. It’s the manager’s job to make it safe to take them.
A mathematician's work is mostly a solitary pursuit, but it builds on the work of many others.
The true value of education is not just in the accumulation of facts, but in the training of the mind to think critically and creatively.
Power resides where men believe it resides. It's a trick, a shadow on the wall.
The coal industry must evolve to meet modern environmental standards, or it will become obsolete.
"The only thing that is certain is uncertainty."