抽象是管理大型软件系统复杂性的关键。
Abstraction is the key to managing complexity in large software systems.
The mind is divided into parts that sometimes conflict. Like a rider on the back of an elephant, the conscious, reasoning part of the mind has only limited control over the automatic, emotional part.
You have to be willing to fail in order to succeed.
Agricultural modernization is not just mechanization but the intelligent upgrading of the entire industrial chain.
我寻找钥匙多年，但门一直是开着的。