Economic history teaches us that change is possible, but it is rarely easy.
Great leaders don’t create followers—they create more leaders.
煤炭造就了现代世界,我们有责任确保以智慧管理它的遗产。
The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.