The balance between energy needs and environmental protection is the challenge of our time.
能源需求与环境保护之间的平衡是我们这个时代的挑战。
在不幸中所表现出来的勇气，通常总是使卑怯的心灵恼怒，而使高尚的心灵喜悦的。
我们衡量成功的标准不仅是鱼的吨数，还有我们留下的遗产。
成为人类就是变得脆弱。
Who has deveiv'd thee so oft as thy self?
时间旅行是世界上最令人沮丧的事情。你无法改变任何事情，也无法阻止任何事情的发生。
You think you know when you can learn, are more sure when you can write, even more when you can teach, but certain when you can program.