The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.

Leadership is about inspiring others to believe in themselves and their abilities.

生命是一份礼物，不要浪费它。

Success is not about luck; it's about hard work, persistence, and making the right decisions.

The mining industry has a responsibility to operate in a way that benefits both shareholders and communities.

追求数学知识是一段永无止境的旅程；总有更多的东西等待发现和理解。