我们今天种下的每一棵树都是留给未来的遗产。
Every tree we plant today is a legacy for tomorrow.
Every new planet we find is a step closer to answering the age-old question: Are we alone in the universe?
真相有时是残酷的。
"The most dangerous stories are those that are true."
对人类行为的经济学方法并非其他方法的替代品,而是一种补充。