Philosophy

Parmenides

c. 515 to 450 BC, Elea

Being is one and unchanging: the way of truth, against the senses.

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Lessons

The Way of Truth

Parmenides’ revolutionary claim that ‘what is, is’ - that Being simply is , eternal and unchanging - and that reason, not the deceptive senses, is the only path to truth, launching metaphysics and the rigoro…

The Two Ways and the Void

Parmenides’ doctrine of the two ways of inquiry - the Way of Truth (‘It is’) and the forbidden Way of Not-Being (‘It is not’) - and his momentous denial of the void, the empty space that the Atom…

The Signs of Being

Parmenides’ rigorous deduction of the properties Being must have - ungenerated, imperishable, whole, one, continuous, unmoved, and complete ‘like a well-rounded sphere’ - the first systematic attempt to deri…

Thinking and Being

Parmenides’ profound claim that ‘it is the same thing that can be thought and that can be’ - identifying the limits of thought with the limits of reality - and the great confrontation with Plato, who honoure…

The Way of Opinion and Zeno’s Defence

Parmenides’ ‘Way of Opinion’ - his account of the deceptive world of the senses - and the brilliant defence mounted by his pupil Zeno of Elea, whose paradoxes of motion and plurality turned the tables on com…

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