You are never too old to set another goal or to dream a new dream.

Ingersoll's story of the man that went down from heaven on a reduced-rate excursion ticket good for 30 days --- and tried to sell his return ticket.

Every tree planted today is a promise to tomorrow.

"Sometimes the hardest thing in life is to know which bridge to cross and which to burn."

舞台是我感觉最有活力的地方。

"The power of a story is that it can make the unfamiliar familiar."

故事的力量在于它能够改变我们。

The best way to learn AI is to do AI.

The future belongs to those who believe in the beauty of their dreams.

创新不是一种选择；它是煤炭行业生存的必要条件。