Coal’s future depends on our ability to make it cleaner and more efficient.

The more I see of the moneyed classes, the more I understand the guillotine.

Every failure is a lesson that brings you closer to success.

The writer is delegated to declare and to celebrate man's proven capacity for greatness of heart and spirit—for gallantry in defeat, for courage, compassion and love. In the endless war against weakness and despair, these are the bright rally flags of hope and of emulation.

心理过程是生活的工具，其价值在于它们的用途。

持续练习的小而刻意的行动可以带来幸福水平的巨大变化。

人依靠自己的力量人才能生存,不依靠自己的力量人就不能生存。