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.
所有的建筑都是庇护所,所有伟大的建筑都是空间的设计,它包容、拥抱、提升或刺激身处其中的人。
The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.
科学中的创新往往来自于以新的方式看待老问题。
Old soldiers never die. They just fade away.