通过这个方法我们可以适当运用我们人类的智慧、我们的理性和分析能力，帮助我们实现幸福和满足。
In this way we can properly use our human intelligence, our capacity for reason and analysis, to contribute to our happiness and satisfaction.
在某些情况下，这些决定将包括折衷方案，但是通过收集适当的需求并对其确定优先级，这些选择中的许多都将是明显的、容易证明其合理性。
In some cases these decisions will involve trade-offs, but with proper requirements gathering and prioritization, many of these choices will be obvious and easily justified.
在大规模使用CSS的时候有保持理性，有一下四个方面的事情可以去做：适当的语义化，模块化，采用一种命名约定，并遵循单一责任原则。
There are four things you can do to stay sane while using CSS at scale: use proper semantics, modularize, adopt a naming convention, and follow the single responsibility principle.
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