他断言，在理解冗长且完全抽象的一系列观点方面，他的能力非常有限，因此他深信自己在数学上永远不会成功。
He asserted that his power to follow a long and purely abstract train of thought was very limited, for which reason he felt certain that he never could have succeeded with mathematics.
我在本系列的第1部分曾提到，抽象是需求分析的一项关键技能。
I wrote about abstraction in Part 1 of this series as being a critical skill for requirements analysis.
本系列用抽象的术语讨论esb并避免讨论产品细节；也就是说，本系列不讨论IBM WedSphere ESB产品或esb模式的任何其他实例。
The series discusses the ESB in abstract terms and avoids product specifics; that is, this series is not about the IBM WedSphere ESB product or any other instances of the ESB pattern.
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