Just as was the case with Kierkegaard, Nietzsche pervades the pages of Being and Time, but if you were to try and prove this by the amount of times that Heidegger refers to his work, then you would equally fail. Just as we said in our lecture on Kierkegaard, however, weighing up citations does not really prove anything at all. Indeed, you might argue their absence proves more than their presence. For if Heidegger had signalled the importance of Nietzsche in Being and Time, then he would have had to litter the text with footnotes. Yet perhaps this importance is more than just scholarly. If Nietzsche is present everywhere in the pages of Being and Time, it is not because this work is an interpretation of Nietzsche, or just follows on from the work of Nietzsche, as though Heidegger’s own philosophy were just a new version of one of Nietzsche’s famous thesis on the eternal return or the will to power. To understand the importance of Nietzsche to Being and Time, you have to interpret it from this vantage point and not impose it from the outside, as though you were just hunting for citations and reference. Such an activity, anyway, is strange way of doing philosophy. It transformation the creativity of thought into a hobby of collecting numbers.
Being and Time opens with the question of being. Not only do we not know the answer to this question but we do not even know what it means to ask it. If Heidegger is going to convince us that it is even worth doing so then he has to have a method. This method is twofold. First of all he has to show us why it is that we have forgotten it and secondly what it is that we have forgotten otherwise we would not know that we had forgotten it. The first method is historical and the second is phenomenological and it is in the first that we might discern the influence of Nietzsche.
To think is not to think in isolation. We might think that there is a simple agreement with what we say about the world and what the world is. Either we think this agreement as its source in the world, so that the aim of knowledge is to discover the truth that is in the world itself. Or we might think its origin is in the subject, such that it is we who have to agree with the world, but the world that has to agree with us. We can see in these two forms the oppositions that have characterised Western philosophy itself throughout its long history through various forms of idealism and materialism. What is common across this opposition, however, is the idea that truth is a representation. One says that the true image of reality is to be found in the world and we simply have to see it there, and the other, in the self, so we simply have to look at ourselves. What is lacking in this account of truth is any sense of history. It either asserts that the world is atemporal and eternal, or the self is atemporal and eternal. Error is not a property of either the universal world or the self, but the individual who has mistaken truth for its opposite. Science, then, is nothing but the progress to an ultimate truth that has been there from the very beginning and which, one supposes, if we ever reach it, will mean that science itself will come to an end. Each individual scientist has been seeking for the same truth from the very beginning, and if they made mistakes, then this was because they were ignorant or biased. Now from our vantage point, because we know that we our closer to the truth than they, we can see this even though they cannot. They thought they were speaking the truth but they were not.
What does it mean to think truth historically? It means that one understands that the representation of the world is not first but second. The source of our image of the world has its origin in a tradition that is itself not an image. Take for example Nietzsche’s argument in his essay ‘On Truth and Lie in an Extra-moral Sense’(Nietzsche 1990). Truth is something that has to appear on this planet. It is an accomplishment, not a given. In other words, there have to forces that produce and create truth. It is only because we have forgotten that truth has a history that we think the agreement between the self and the world, whether from the side of the world or the self, is natural and universal to the human species. It is in this social existence that the first urge for truth arises. It is society that fixes the truth of terms. The liar is excluded because he misuses words and meanings. So it is not deception that bothers us but what harm comes to us from deception and we want truth because it is agreeable and preserves our existence. Truth is first of all normative. It’s basis is that we experience the world in the same way and this can only be brought about through social force. We have to be made to feel the world in the same way. Only then can we claim that truth is in us or outside of us as a representation.
Truth is imposed upon us by society. We use the same metaphors as everyone else. Lie like everyone else. We forget that we are lying so no-one knows that they are lying. Because we forget, we think the lies are the truth. This commitment to truth is moral, for one’s attachment to it means that you judge as the liar the one who does not speak conventionally. You also judge yourself. You think only in abstractions and universals, and you ignore every subtle impression or sensation. Thus everything is reduced to schemata and diagrams that turn the perceptual and visual world into a grid. This how we humanise the world so that it does not threaten and disturb us. You have to understand that this is first of all a moral order. We force the world to conform to our concepts and then only subsequently say that it is true.
Does this mean, then, that Nietzsche himself is telling us lies. Does he not fall for the paradox of claiming that everything is lie apart from the statement ‘everything is lie’? That would be so if the only account of truth that we could give is representational. If the only truth were the agreement of the world with the self, either from the side of the world or from the viewpoint of the self, then Nietzsche would be the relativist that people confuse him with, because they think that when he says that everything is an interpretation he means that every truth is just what you say it is. Yet this truth, as we have seen, is not first but second. It is the result of certain history that prioritises representational thought, but it itself cannot be representational. There must, therefore, be another kind of truth, a ‘higher’ then this kind.
First of all there must be a truth about the history of truth. We must be able to examine how this truth came about, and also that there could be other truths, other ways of conceiving the world than agreement. This method Nietzsche calls genealogy. So his Genealogy of Morals, for example, is not about the definition of morality, as one might find in Kant and Bentham, but this history of this morality, which has a common source, even though at the level of representation they appear as opposites. The history of morality is the study of how something like morality came about in the first place and how different moralities are expressed in different civilisations and through time. Yet the past is not just for the sake of the past, for Nietzsche. It is not about collecting facts like an entomologist butterflies, but how the past means something for us in the future. Why does it matter to us, what does it have to say to us, and how will it change us. Nietzsche interest in the Ancient Greeks, for instance in The Birth of Tragedy, was not merely a matter of historical curiosity about the past, but that they could say something to us about our future.
Why the ancient Greeks were so important is that they had not fallen under the thrall of representational truth, though there philosophy, to some extent, in the thought of Plato and Aristotle, set in train its eventual triumph. What the ancient Greeks knew, and what they could still teach us, is that the world is not first of all represented but created. Even the world as representation had to be created. Creation, then is the other meaning of truth, as well as history. For what we see when we look at history of truth is its creation. It is these creations that are the original source for the paradigms of truth that over time forget their own origins so that they confuse themselves for the truth.
Creativity requires freedom otherwise how could there be other possibilities than the reality that faces us? When we think about freedom, however, we think about in terms of freedom of choice. We think freedom is simply a matter of choosing between one thing and another, or between one life and another. We have already seen with Kierkegaard that this is not the only way of interpreting freedom. What freedom means for Nietzsche is self-determination and self-determination is nothing like choosing, and indeed from its perspective self-determination will look very much like un-freedom.
When we come to think of the difference ourselves and nature, we think of nature as being determined and ourselves as being free. We think of nature made up of atoms which are causally tied together by the chain of necessity. We however, are more than just atoms (though they make up our physical nature) because we have reason. Freedom is not a natural property of something. Freedom does not exist in this way. Rather freedom is an idea. It has no reality about from people asserting it. Yet this difference between freedom and necessity mirrors the very opposition between idealism and materialism that is the basis of representational truth, and which we have seen Nietzsche rejects. This is why some readers of Nietzsche can get confused and think he’s a determinist and cannot understand how at the same time he will speak of genius and creativity. If you think you are free because you have reason, then Nietzsche is a determinist, because he would claim that this idea is a fiction. But that the same time the causal universe of science is also only an idea. Reality goes deeper than both reason and matter. It is the lived body.
What Nietzsche means by the livid body is not the physiological body of science, since that body too is thought in terms of causes and effects, but existence. Existence here is not a category of thought, but a way of being. When we speak of a physical body, then we are thinking of body that is common to many, but existence is not. Existence is individual. The body that Nietzsche speaks of is my body. The body I live in and which expresses my being concretely and not abstractly. It is my body which first of all says who I am and not thought. Thought has its source in the unthought and the unthought is the body with feelings, instincts and drives. It is the body which is the vehicle of history (it is the body that both resists and is formed by power) and not thought that only catches up with history retrospectively.
I am where my body already is shaped by history and projected into the future. The real opposition is not between the self and the world, which is an opposition of thought and not the body, but between thought and the unthought. Thought want to say that it is it that battles against thought, but in fact thought has its origin in the unthought, and without it thought would be sterile and lack creativity. We do not first exist as individuals because we think, since the thinking self is the universal self that is common to everyone. I exist first of all as the lived self that is my body. Only retrospectively does this body think. Reason has its origin in the historical being of the concrete individual, and not the other way around as it likes to imagine.
The ontological freedom of self-determination is to become who you already are. To become what your body, in its historical being, has already fated you to be. The choice I have is affirmation. Can I affirm my individual existence or not, and not whether I can choose between one action or not. The authentic individual is not someone who makes choices, but who seizes their own existence as their own. Outwardly nothing has changed at all. I am still the person I have always been and would have been. Yet this time I accept fully the person that I am. To do so, for both Heidegger and Nietzsche, means to live in the truth. It cannot be understood, of course, in terms of representational truth, for that would mean an agreement between the self and the world, an acceptance of reality, and a passivity in relation to its image, whether that image was internal or external. To live in the truth is to be revealed to oneself as one is out of one’s past and forward into the future.
Haase, U.M., 2008. Starting with Nietzsche, London; New York: Continuum.
Heidegger, M., 1981. Nietzsche: The Will to Power as Art, Taylor & Francis.
Nietzsche, F.W., 1990. Philosophy and Truth: Selections from Nietzsche’s Notebooks of the Early 1870’s, Humanity Books.
 There are only three references to Nietzsche, as David Farrell Krell remarks in his analysis of Heidegger’s later lectures on the same philosopher, in Being and Time (Heidegger 1981, p.247)
 Ulrich Haase provides an excellent guide to this text and to Nietzsche thought as a whole in his introduction, which is more than just an introduction since it is a philosophical interpretation, Starting with Nietzsche (2008, pp.22–23). Much that is written here is inspired by it.