Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

世界是美丽的，但它有一种叫做人类的疾病。

Life is a series of moments, some bright, some dark, all essential.

The future of coal depends on our ability to innovate and reduce its environmental impact.

每个艺术家都将画笔浸入自己的灵魂，将自己的本性描绘在画作中。