性能的关键在于优雅，而不是大量的特殊情况。
The key to performance is elegance, not battalions of special cases.
To talk about painting is not only difficult but perhaps pointless too.
最重要的事情往往最难说出口。
领导力意味着今天做出艰难的决定，这些决定将使公司明天受益。
The art of life is to live in the present moment, and to make that moment as perfect as we can.
学习算法的设计应同时受到理论见解和实践考虑的指导。