為什麼英格蘭可以實現共和，而宋之後的中國不能？
為什麼歷史既不是人民創造的，也不是英雄創造的？
為什麼中國複製英、美的路徑，不能保證走向共和？
為什麼歷史沒有必然，更不存在國家必然走向共和？
為什麼歷史不能由歷史學家來寫？
歷史不僅是過去，也是現在，更是我們的未來！
對於中國，歷經了三大歷史決定性的突變： 確立華夏文明的商周之變、西元千年由盛轉衰的國運之變、近代遭遇西方文明激烈衝突的三千年未遇之變。 三大變，是中國之所以成為今日之中國的最重要原因。 時至今日，雖然研究三大變的文章汗牛充棟，但都缺乏對三大變的全域觀，以及三大變背後觀念史的分析，絕大多數都變成了簡單編年史的堆積。 喬瓦尼·巴蒂斯塔·維柯認為歷史不能由歷史學家來寫，進一步，歷史也無法由歷史學家揭示背後的成因 —— 這恰恰是跨越者（Leaper）的任務。
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