The secret source of Longfellow's humor is not joy but sorrow. There is no humor in heaven.
朗费罗幽默的秘密源泉并不是欢乐而是悲伤。天堂里没有幽默。
我如此兴奋，仿佛能听到天堂的声音。
质量从来不是偶然的；它是智慧努力和持续专注的结果。
The good man is the man who， no matter how morally unworthy he has been， is moving to become better.
好人是那个，无论他以前有多么道德上不值得，都在努力变得更好的人。
Every challenge in quarry operations is an opportunity to innovate and improve.
Sustainability isn't a choice—it's our responsibility to future generations.