Eastern philosophy
The "Dao De Jing" ("Tao-Te-Ching," c. 4th century BCE), traditionally attributed to Laozi, and the "Nan Hua Jing" ("Zhuang Zi") are considered the key texts of the tradition. The first organized form of Taoism, the Tianshi (Celestial Masters') school arose in the 2nd century CE. Xuanxue ("deep learning", also "Neo-Taoism") was a major philosophical movement influenced by Confucian scholarship, which focused on the interpretation of the "Yijing," "Daodejing," and "Zhuangzi" and which flourished during the third to sixth centuries CE. The most important philosophers of this movement were He Yan, Wang Bi, the Seven Sages of the Bamboo Grove, Ge Hong and Guo Xiang. Thinkers like He Yan and Wang Bi focused on the deep nature of Tao, which they saw as being best exemplified by the term "Wu" (nothingness, non-being, negativity).
Vincent Descombes
Descombes has also written an introduction to modern French philosophy ("Le même et l'autre") focused on the transition, after 1960, from a focus on the three H's, Georg Wilhelm Friedrich Hegel, Edmund Husserl and Martin Heidegger to the "three masters of suspicion", Karl Marx, Friedrich Nietzsche and Sigmund Freud. In the same book, he introduced the term "post-Kojèvian discourse" to designate the period of French philosophy after the 1930s (from 1933 to 1939, Alexandre Kojève delivered in Paris a series of lectures on Hegel's work "The Phenomenology of Spirit" that had an immense influence on 20th-century French philosophy).