The most important things in life ­ like life itself ­ are priceless. But that doesn’t mean that issues involving the preservation of life (or a way of life), like defense, should not be subjected to cool, hard economic analysis.
生命中最重要的东西，比如说生命本身都是无价的。但是，这并不是说涉及到保存生命（或者生活方式）的问题，例如说防务，就不应该接受冷静、细致的经济分析。