成功絕非偶然。它是努力工作、堅持不懈、學習、研究、犧牲，最重要的是熱愛你所做的事情。
Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing.
We've done price elasticity studies, and the answer is always that we should raise prices. We don't do that, because we believe -- and we have to take this as an article of faith -- that by keeping our prices very, very low, we earn trust with customers over time, and that that actually does maximize free cash flow over the long term.
效率和技術(shù)是在波動的石油市場中生存的關鍵。