乐观是一种可以学习的技能。
天然气将在向低碳未来的过渡中发挥关键作用。
我们都在阴沟里,但仍有人仰望星空。
投资更清洁的煤炭技术是对能源未来的投资。
Poetry is the language of the soul, and the soul speaks in the language of the heart.
The mind-body problem is not just a local problem, but one that confronts us with a deep mystery about the universe.