It may be said that the measure of the worth of any social institution is its effect in enlarging and improving experience, but this effect is not a part of its original motive.
【核心詞彙】
measure v.衡量,測量
enlarge v.擴大
motive n.動機,動因
original a.原始的,最初的
improve v.改善,增進
【結構分析】
主幹是but連接的兩個並列句,第一個分句有一個簡單的形式主語結構it may be said,that後面的'句子是真正的主語,but後面是簡單的主系表結構。
【參考譯文】