"The world is a mirror, and the mirror is a shadow."
模型的唯一真正检验是其预测未来的能力，而未来总是不确定的。
"Every story has an end, but in life every end is just a new beginning."
在采石行业的成功不仅仅是开采石头；它关乎理解土地并尊重其极限。