a study of the beginning of Husserl's thought 数学、逻辑与现象学：论胡塞尔思想的发端：a study of the beginning of Husserl's thought a study of Friedrich Kittler's thoughts a study of Judith Butler's thoughts a study of Zhang Luxiang's academic thought a study of Ma Zhu's thought The development of husserl's thought a study of Greek political thought a study of Heller's aesthetic thought a study of Nathaniel Hawthorne's thoughts