The work of art is the result of a struggle between the artist and his material.

我认为最重要的是不要害怕失败。

饥饿了就想吃饭，寒冷了就想温暖，疲劳了就想休息，爱好利益而厌恶祸害，这是人生下来就具有的本性。

Innovation in natural gas extraction is essential for meeting the world's growing energy demands.

科学的每一个伟大进步都源于想象力的新大胆。

数学的美在于它能够用一种普遍的语言来描述世界。