煤炭的未来不在于数量，而在于我们能否清洁高效地利用它。
The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.
In the end, the success of any technology is determined by its ability to solve real-world problems.
唯有浅薄的人需要用数年挣脱一种情感。一个人当得了自己的主人，便可轻易终结哀伤，轻易制造快乐。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
译文：志向正直就能遏制各种坏念头，心里平静处理各种事情就不会急躁。赏析：恶念是所有错误行为的根源，我们要砥砺自己的品格，遇事冲动鲁莽，只会坏事。