A crucial work for understanding the full maturity of Heidegger's thought  Meer

Focussing on Leibniz's principle: 'nothing is without reason', this book shows that the principle of reason is in fact a principle of being. It also contains discussions of language, translation, reason, objectivity, and technology - as well as readings of Leibniz, Kant, Aristotle, and Goethe.  Meer