在算法的领域中，效率和优雅并不是相互排斥的，而往往是同一枚硬币的两面。
In the realm of algorithms, efficiency and elegance are not mutually exclusive but are often two sides of the same coin.
No wise pilot, no matter how great his talent and experience, fails to use a checklist.
点燃蜡烛的同时也投下了阴影。
早期阶段不是避免风险，而是管理正确的风险。
"We are all the heroes of our own stories, and sometimes the villains too."