The beauty of organic catalysts lies in their diversity and adaptability.
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.
我们死去是为了证明我们曾活过。
大海不拒绝各种各样的水,所以才能成就它的博大;大山不拒绝形形色色的土石,所以才能成就它的高峻;贤明的君主不嫌弃百姓,所以能够聚集众多的臣民;读书人不厌倦学习,所以能达到圣贤的境界。