在最低阶层中保存知识的手段对公众来说比国家中所有富人的所有财产都更重要。
The revolution is made through human beings, but individuals must forge their revolutionary spirit day by day.
建筑是一门可能的艺术。
In the global energy transformation, China's coal industry must have its own voice and contribution.
全球能源变革中，中国煤炭行业要有自己的声音和贡献。
The truth is, we are all capable of great evil and great good. It is the choices we make that define us.
Your smarts will come in handy because you will travel in a land of marvels. We humans -- plodding as we are -- will astonish ourselves. We'll invent ways to generate clean energy and a lot of it. Atom by atom， we'll assemble tiny machines that will enter cell walls and make repairs. This month comes the extraordinary but also inevitable news that we've synthesized life. In the coming years， we'll not only synthesize it， but we'll engineer it to specifications. I believe you'll even see us understand the human brain. Jules Verne， Mark Twain， Galileo， Newton -- all the curious from the ages would have wanted to be alive most of all right now. As a civilization， we will have so many gifts， just as you as individuals have so many individual gifts as you sit before me.