The book presents the most important lecture by Martin Heidegger "What is metaphysics?" and chapters from the course of lectures on Nietzsche. Particular attention is invariably paid to the very foundations of metaphysics, even when it seems to be about something else, so lectures give some idea of ​ ​ Heidegger's position and philosophy as a whole. The book is not intended for a wide range of readers, even for lovers of complex mental constructions, if only because to delve into the philosophy of this wonderful thinker, intellectual effort alone is not enough - existential is also necessary. However, for those who cannot help but think about the meaning and essence of their own life, in general, being, these lectures can be very useful, exciting and interesting.