The key to managing complexity is to focus on the interfaces between components, not their internal details.

Don't walk behind me; I may not lead. Don't walk in front of me; I may not follow. Just walk beside me and be my friend.

过去是一个异国；他们在那里做事的方式不同。

假如一个女人爱上了一个男人，只要女方不故意瞒住男方，男方一定会看得出的。