活着是世界上最罕见的事情。大多数人只是存在，仅此而已。
"To live is the rarest thing in the world. Most people exist, that is all."
The most sustainable mines are those that think beyond extraction.
理论物理学的美在于它能够揭示支配宇宙的隐藏对称性和模式。
未来属于那些能够在减少环境影响的同时提取价值的人。