Coal is China's main energy source and will remain the cornerstone of China's energy security for a long time to come.

A good mathematician is lazy, but in a constructive way.

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

Science has no borders, but scientists have a motherland, we must contribute to the development of national agriculture.