我们必须自由，不是因为我们主张自由，而是因为我们践行自由。
We must be free not because we claim freedom, but because we practice it.
The future of the petroleum industry lies in efficiency, cleanliness, and low carbon. We must find a balance between traditional and new energy sources.
成为一家受人尊敬的互联网公司，而不仅仅是一家大公司。
保持领先的唯一方法是不断创新和适应。
质量在价格被遗忘后仍会被长久铭记。
"Your most unhappy customers are your greatest source of learning."
After climbing a great hill, one only finds that there are many more hills to climb.
I have often been asked how my plays come about. I cannot say. Nor can I ever explain to myself what they mean.