“So long as the priest, that denier, calumniator and poisoner of life by profession, still counts as a higher kind of human being, there can be no answer to the question: what is truth? One has already stood truth on its head when the conscious advocate of denial and nothingness counts as the representative of ‘truth”

“There are many kinds of eyes. Even the sphinx has eyes - and consequently there are many kinds of 'truths,' and consequently there is no truth”

“...inability to lie is still far from being love to truth. Be on your guard! ... He who cannot lie, doth not know what truth is.”

“1. The Will to Truth, which is to tempt us to many a hazardous enterprise, the famous Truthfulness of which all philosophers have hitherto spoken with respect, what questions has this Will to Truth not laid before us! What strange, perplexing, questionable questions! It is already a long story; yet it seems as if it were hardly commenced. Is it any wonder if we at last grow distrustful, lose patience, and turn impatiently away? That this Sphinx teaches us at last to ask questions ourselves? WHO is it really that puts questions to us here? WHAT really is this "Will to Truth" in us? In fact we made a long halt at the question as to the origin of this Will—until at last we came to an absolute standstill before a yet more fundamental question. We inquired about the VALUE of this Will. Granted that we want the truth: WHY NOT RATHER untruth? And uncertainty? Even ignorance? The problem of the value of truth presented itself before us—or was it we who presented ourselves before the problem? Which of us is the Oedipus here? Which the Sphinx? It would seem to be a rendezvous of questions and notes of interrogation. And could it be believed that it at last seems to us as if the problem had never been propounded before, as if we were the first to discern it, get a sight of it, and RISK RAISING it? For there is risk in raising it, perhaps there is no greater risk.”

“On the mountains of truth you can never climb in vain: either you will reach a point higher up today, or you will be training your powers so that you will be able to climb higher tomorrow. -”

“Truth is a mobile army of metaphors, metonyms, anthropomorphisms, in short, a sum of human relations which were poetically and rhetorically heightened, transferred, and adorned, and after long use seem solid, canonical, and binding to a nation. Truths are illusions about which it has been forgotten that they are illusions.from "On Truth and Lying in an Extra-Moral Sense”

“The tragedy is that we cannot believe the dogmas of religion and metaphysics if we have the strict methods of truth in heart and head, but on the other hand, we have become through the development of humanity so tenderly suffering that we need the highest kind of means of salvation and consolation: whence arises the danger that man may bleed to death through the truth that he realises.”