Parmenides

is the purest example of the Greek desire to comprehend, a desire which in him would have nothing to do with what was not strictly knowable.

The purest example of the Greek desire to comprehend, a desire which in him would have nothing to do with what was not strictly knowable. If later philosophers appear softer by comparison, it is perhaps because of a revivifying compromise they made, one more acceptable and more tolerant of the discourse we perhaps need; but, by the same token, one can perhaps be forgiven for sometimes thinking them dwarfed by the inhuman shadow of the master.

is known for his influential arguments against the concept of empty space.

The Greek tradition was a complete contrast to that of the Far East. ...the Greeks placed logic at the pinnacle of human thinking. Their sceptical attitude towards the wielding of 'non-being' as some sort of 'something' that could be subject to logical development was exemplified by Parmenides' influential arguments against the concept of empty space. ...He maintained that you can only speak about what is: what is not cannot be thought of, and what cannot be thought of cannot be. ...more unexpected was the further conclusion that time, motion nor change could exist either.

is concerned with the idea that neither time, motion nor change could exist.

is concerned with the idea that you can only speak about what is: what is not cannot be thought of, and what cannot be thought of cannot be.

rules out any ultimate entity at work behind coming-to-be, passing-away, or alteration. Rather, he shows that there is a plurality of fundamental, predicationally unified entities that can be used to explain the world reported by the senses.

The crisis at the heart of Parmenides' argument, "is or is not," rules out any candidate for an ultimate entity in an explanation of what there is that is subject to coming-to-be, passing-away, or alteration of any sort. Such an entity must be a whole, complete, unchanging unity: it must be a thing that is of a single kind … But it does not follow from this that there can be only one such entity. Parmenides' arguments allow for a plurality of fundamental, predicationally unified entities that can be used to explain the world reported by the senses.

is known for stating that either a thing is or it is not, meaning that creation and destruction is impossible.

Parmenides believed that all Being is what he called the One, and denied absolutely the possibility of change. He believed that the cosmos is full (i.e., no void), uncreated, eternal, indestructible, unchangeable, immobile sphere of being, and all sensory evidence to the contrary is illusory. One Parmenidean fragment stated, "Either a thing is or it is not," meaning that creation and destruction is impossible.

is of the belief that all Being is 'the One'. He denied absolutely the possibility of change.

is of the belief that the cosmos is full (i.e., no void), uncreated, eternal, indestructible, unchangeable, immobile sphere of being, and all sensory evidence to the contrary is illusory.

Parmenides, n.All

Parmenides