矿工的技能和奉献精神与他们带到地面的煤炭一样宝贵。

Hunger and poverty are the root causes of much of the world's unrest and misery.

我认为最好的电影是那些挑战你、让你思考、让你有所感受的电影。

实现明天的唯一限制是我们今天的疑虑。

 Happiness is at your feet, if only you are willing to lower your head and look for it.

技术突破不是一蹴而就的，需要长期投入和耐心积累。