最优雅的证明是那些清晰地揭示问题本质的证明。
The most elegant proofs are those that reveal the heart of the problem with clarity.
最重要的是要忠于自己和你所扮演的角色。
The role of oil and gas companies is evolving, and we must evolve with it.
Happiness is a state of mind, not a set of circumstances.