在少年时代最困难的时期就是我的朋友都成双入对了，而我只能埋头于书本。
And there were difficult periods during my mid-teens when my friends started to couple up, while I kept my head in the books.
在我自己的交游中，最值得系念的老是一此少年时代以来的朋友。
Of all my friends, those I have known since child-hood are most worthy of remembrance.
在我自己的交游中，最值得系念的老是一些少年时代以来的朋友。
Of all my friends, those I have known since childhood are most worthy of remembrance. They are few in number.
在我自己的交游中，最值得系念的老是一些少年时代以来的朋友。
Of all my friends, those I have known since childhood are most worthy of remembrance. They are few in number.
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