If you are buying something that you will use often and for a long time, never go cheap.
如果你要买个常用而要用比较久的东西，不要买便宜的。
Graham added that your stock proportion should never go below 25% (when you think stocks are expensive and bonds are cheap) or above 75% (when stocks seem cheap).
格雷厄姆补充说，你的股票投资比例永远不应低于25%(当你认为股票昂贵而债券便宜的时候)，也不能高于75%(当股票看起来价格低廉的时候)。
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