 In Ja und Nein, a work written a little over four years before his death, Rosenstock-Huessy thanked Georg Müller for having summed up seven decades of thought in the three words: speech, time, history. ‘I seem’ he says ‘to have pursued the daily life of peoples and their members as reflections of this trinity. I have looked at the speech of individuals and nations, the times of lovers and haters, the history of empires, the church and society as the reflections of the divine trinity’ (1968, 9). These three terms not only sum up the orientation of Rosenstock-Huessy’s life work, they also provide the key to understanding where he thinks philosophy has gone wrong.