"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
煤炭技术的创新与其他能源领域的创新同样重要。
安全感就是能在小汽车的后座上睡觉。小时候，爸妈开车带你出门，到了晚上，你不知不觉在后座上睡着了……你啥都不用担心，爸妈就在前座上，他们负责忧虑一切……但是这样的时间很短暂，一不小心你就变成了那个坐在前面的成年人，而成年人永远失去了在后座睡觉的权利。
An individual has not started living until he can rise above the narrow confines of his individualistic concerns to the broader concerns of all humanity.