人们要求言论自由作为他们很少使用的思想自由的补偿。

学习数学的唯一方法就是做数学。

Sustainability must be at the core of every decision we make in the oil and gas industry.

可持续性不是一种趋势；而是我们对后代的责任。

我不是说唱歌手，我是摇滚明星。

The quality of an organization's ethics determines the quality of its decisions.

成功不是终点，失败也并非致命，重要的是继续前进的勇气。

The past is always changing. It is not fixed. The past is not stable.