We have to continually be jumping off cliffs and developing our wings on the way down.

世界上有许多既美好又出类拔萃的事物，可是他们却各不相依。

If you do what you've always done, you'll get what you've always gotten.

释义：不能因为暂时的得意就自夸能力出众；也不能因为暂时的失意就丧失自己的志向。

We must balance the need for energy security with the urgency of reducing emissions.