Every challenge in quarry operations is an opportunity to innovate and improve.
采石场运营中的每个挑战都是创新和改进的机会。
发现可能极限的唯一方法，就是超越它们进入不可能。
"We are all haunted by the ghosts of our younger selves."
真正当代的唯一方式是成为不合时宜的。
In my early professional years I was asking the question: How can I treat, or cure, or change this person? Now I would phrase the question in this way: How can I provide a relationship which this person may use for his own personal growth?
For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.