People whose main comern is their own happiness seldom find it.
只关心自己幸福者，很少得到幸福。
If binary content is seldom used, your users will find it more convenient to embed binary data in the XML document.
如果二进制内容很少使用，则将二进制数据内嵌在XML文档中可以让用户方便地找到。
Who talks much of sin may still find time to commit it. Who talks much of virtue finds seldom time to practice it.
高谈阔论罪行的人仍旧有功夫犯罪，而高谈阔论德行的人却很少有功夫去实践。
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