Editing Parmenides (section)

=== Modern era ===
The philosophy of [[Martin Heidegger]] revisited the concept of a Parmenidean eternal Being.{{Sfn|Grondin|2012|pp=10, 12}}{{Sfn|Vamvacas|2009|p=164}} He described Parmenides as the first to create a unified concept of Being and Nonbeing.{{Sfn|Vamvacas|2009|p=146}}

In ''On Nature'', Parmenides describes the truth as the path of ''that is''. The philologist [[Hermann Fränkel]] identified this use of an [[impersonal verb]] as an atypical grammatical construction in Ancient Greek. It is understood to refer to the concept of Being, described through [[postposition]].{{Sfn|Grondin|2012|p=10}} The goddess's description of Being is effectively the affirmation of its existence. Aubenque commented that this is "the thesis of Being itself".{{Sfn|Grondin|2012|p=11}} Ernst Hoffman proposed that Being, discourse, and thought were all the same thing.{{Sfn|Grondin|2012|p=13}}

[[Friedrich Nietzsche]] suggested that Parmenides believed his cosmology, even though he understood that it was only part of the seeming world. [[Karl Popper]] said that it was necessary for Parmenides to disprove his own cosmology to prove that the seeming world was not true. He likened this to modern physics, in which theories of physics do not necessarily correspond to what appears to be true.{{Sfn|Vamvacas|2009|p=145}}

The question of whether time and space are continuous or discrete is prominent in [[modern physics]], where several mathematicians and physicists propose Parmenidean models. [[Albert Einstein]] developed a single model of [[spacetime]] to explain the universe. [[Hermann Weyl]] argued that time exists only subjectively. [[Karl Popper]] further described the ideas of [[Ludwig Boltzmann]], [[Kurt Gödel]], [[Hermann Minkowski]], and [[Erwin Schrödinger]] as reminiscent of Parmenides. The [[Wheeler–DeWitt equation]] suggests that time does not exist as its own distinct entity.{{Sfn|Vamvacas|2009|p=163}}

Among the historians of philosophy and philologists: [[William Keith Chambers Guthrie]] observes that the figure of Parmenides is a fundamental milestone that divides the course of [[Pre-Socratic philosophy]] in two, because it stopped the inquiry into the origin and constitution of the universe and reoriented the course of archaic thought.<ref name = "guth15"/>  Coxon argues that Parmenides was the first genuine philosopher of the Greek world, the founder of European philosophy, and the first proper metaphysician, unlike the other pre-Socratics who discovered the principles of what is now known as science. said.<ref>Coxon, "The Philosophy of Parmenides," p. 144.</ref>