In this article, David Chisnall, author of Cocoa Programming Developer's Handbook, looks at what is really at the core of Apple's operating system and where it came from.

这篇文章介绍了大卫·奇斯纳尔——《Cocoa编程开发者手册》一书的作者，是如何看待苹果操作系统的核心到底是什么，以及它是由何而生的。

youdao

In order to make you understand, master and use this machine better, please read this handbook carefully, otherwise it may bring you some unnecessary bothering due to some minor mistakes in operating.

为了让您更好地了解、掌握和使用这款机器，请您仔细阅读本手册，否则一个小小的违章操作，可能给您带来不必要的麻烦。

youdao

The story goes like this: the engine maker wants you to run its engines according to the operating guidelines spelled out in the handbook that comes with every airplane.

FORBES: Institutional Stupidity, III