http://blogs.sussex.ac.uk/sussexphenomenology/files/2013/05/Martin-Heidegger-Joan-Stambaugh-Translator-On-Time-and-Being-1977.pdf
https://grattoncourses.files.wordpress.com/2016/12/22the-end-of-philosophy-and-the-task-of-thinking22.pdf
In 1964, Heidegger’s short work “The End of Philosophy and the Task of Thinking” first appeared, in a French edition. It would be his last piece of great philosophy, published at age seventy-five.
Since 1930, Heidegger says, he has made repeated attempts to rethink the central question of Being and Time. This now leads him to ask two questions. First, what does it mean if Heidegger says that philosophy has entered its final stage? Second, what task still remains for thinking as philosophy comes to an end?
Harman, Graham. Heidegger Explained: From Phenomenon to Thing (Ideas Explained) (p. 151). Open Court. 2007, Kindle edition.