我们必须对变革的速度保持现实态度。即使我们投资于低碳解决方案，世界在未来几十年仍将需要石油和天然气。
We must be realistic about the pace of change. The world will need oil and gas for decades to come, even as we invest in lower-carbon solutions.
I always try to be positive, even in difficult moments.
Never stop learning. The minute you think you know it all is the minute you stop growing.
The key to performance is elegance, not battalions of special cases.