Writings by historian Diogenes Laertius and Plato state, Parmenides was a student of Xenophanes of Colophon who lived between 570BC and 480BC. The concepts of logic and an omnipotent force or ‘One’, a sort of god, were teachings of Xenophanes that were propagated by Parmenides.

Parmenides denied the reality or the possibility of change as part of his psychology, termed ‘Monist’ or revolving around a single apex. His major contribution was the method of reasoned proof for assertions of truth.

Parmenides posed an unprecedented challenge in the history of Western thought that paved way for enquiries of subsequent thinkers including Empedocles, Anaxagoras and Democritus. The intellectual quest on the basis of Parmenides thinking continues till date. Parmenides is called the ‘Father of Monist Thinking’, for founding a school of thought that bases its hypothesis and teachings on a single power. He is also the founder of the Eleatic School in ancient Greek psychology.

Due to absence of proper records, the death of Parmenides is not documented. However, historian Diogenes Laertius deduced, Parmenides of Elea passed away due to old age in 450BC.

From the 150 lines of his 3,000 line poem called ‘On Nature’ that have survived over 25 centuries, Parmenides narrates his imagined meeting with a goddess or the ‘One’ who reigns supreme over the universe. He tells the goddess: “No mortal may surpass thee in knowledge”.  Thus, Parmenides tells himself to understand the fallacious sentiments of mortals and how they perceive things. The poem narrates of the goddess telling humans to distinguish between two forms. “One of which they should have left out, and that is where they go astray from the truth. They have assigned an opposite substance to each, and marks distinct from one another. To the one they allot the fire of heaven, light, thin, in every direction the same as itself, but not the same as the other. The other is opposite to it, dark night, a compact and heavy body.”

Since “all things have been named light and night,” Parmenides asserts his conviction that they are not separated. There is only one single, unchangeable whole, which at the same time contains light and dark, “everything is full at once of light and dark night, both equal, since neither has anything to do with the other.”