When I write songs, I often cry.

愚蠢的人和聪明的人之间的区别——无论他们是否受过良好教育——在于聪明的人能够处理微妙之处。

The world is a book, and those who do not travel read only one page.

数学是逻辑思想的诗歌。

Innovation in mining technology is essential to meet the world's energy demands.

财富的积累有赖于节俭和投资。