难句解析：
1. If the tradition of ambition is to have vitality, it must be widely shared; and it especially must be highly regarded by people who are themselves admired, the educated not least among them。
【结构分析】 本句是并列句，前一个分句中，“if”引导条件状语从句，主句主语“it”指代“the tradition of ambition”。后一个分句中“who”引导一个定语从句修饰“people”，“the educated not least among them”是“people”的补语。
2. What has happened is that people cannot confess fully to their dreams, as easily and openly as once they could, lest they be thought pushing, acquisitive and vulgar。
【结构分析】 “what”引导主语从句，“that”引导表语从句。“as…as…”结构做程度状语，此外“lest”引导带虚拟语气的假设状语从句。
3. Instead, we are treated to fine hypocritical spectacles, which now more than ever seem in ample supply: the critic of American materialism with a Southampton summer home; the publisher of radical books who takes his meals in three-star restaurants; the journalist advocating participatory democracy in all phases of life, whose own children are enrolled in private schools。
【结构分析】 本句看上去很长，主句是“we are treated to fine hypocritical spectacles”。“which”引导一个非限定性定语从句修饰“spectacles”。在冒号的后面是三个并列的名词性短语，关键词分别是“critic”，“publisher”和“journalist”。