We must balance the need for affordable energy today with the imperative of building a sustainable energy future.
 如果一个人从确定性开始,最终将陷入怀疑;但如果他愿意从怀疑开始,最终将得到确定性。
这就好像自己赤裸着身体却指责别人掀起衣服不礼貌一样。 
The purification of the soul is more important than the purification of the body.