我们必须平衡能源需求与保护地球的责任。
We must balance the need for energy with the responsibility to protect our planet.
你给予的越多，得到的就越多。
过度捕捞是从子孙后代那里偷窃——我们必须成为制止它的一代。
A proof is a way to convince yourself and others that something is true.
"The biggest risk is not taking any risk."
发现的喜悦无疑是人类心灵所能感受到的最活跃的喜悦。
The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.