The dissolution of the Western-dominated Postwar Order, and the Eurocentric myths that sustain it, presents a unique opportunity to ponder an old question posed by every new generation: How can philosophy, which Islamic and ancient Greek learning traditions have long defined as the pursuit of “wisdom,” resume its millennial civilizing role? This paper looks beyond passing political events to reconsider why philosophy was viewed in this role. As different as al-Fārābī, Ibn Sīnā, Ibn Khaldūn, Mullā Ṣadrā, Hegel and Heidegger are from each other, they all approached the question of civilization philosophically by way of the fundamental question of beingness (mawjūdiyya) and existence (wujūd). Moreover, they strove for “completeness” of thinking with the “practical,” where, however, they resisted the temptation to reduce man to his practical or biological functions. Given the magnitude of the present challenges we all face, no dialogue across cultural boundaries can ignore the caution with which philosophical tradition has laid out the terms of this completeness in being.