系统的混乱并非业务本身之复杂，我们并不擅长处理『简单』

All software construction involves essential tasks and accidental tasks.
-- Frederick P.Brooks,Jr 《No Silver Bullet》
译：所有软件构建都包含其本质部分与偶然部分。

Despite all their heroics, overtime, and dedication, they simply aren't getting much of anything done anymore. All their effort is now consumed with managing the mess.
-- Robert C.Martin 《Clean Architecture》
译：不管你们多敬业、加多少班，在面对烂系统时，你仍然会寸步难行，因为你大部分的精力不是在开发需求，而是在应对混乱。 

Simplicity has been difficult to implement in modern life, because it is against the spirit of a certain brand of people who seek sophistication so they can justify their profession.
-- Nassim Nicholas Taleb 《Antifragile:Things That Gain from Disorder》
译：在现实生活中，简单的做法一直难以实现，因为它有违某些努力寻求复杂化，以证明其工作合理性的人所秉持的精神。

Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple。
-- Steve Jobs
译：简单比复杂更难，你必须尽力理清思路才能做到简单。

Keep it Simple and Stupid
-- Robert S. Kaplan
译：保持简单和笨拙

All the philosophy really boils down to one iron law, the hallowed ‘KISS principle’ of master
engineers everywhere.
-- Eric Steven Raymond 《The Art of Unix Programming》
译：所有的UNIX哲学浓缩为一条铁律，那就是各地编程大师们奉为圭臬的KISS原则。 

Entities should not be multiplied beyond necessity.
-- William of Ockham 《Occam's Razor》
译：如无必要，勿增实体。