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Single Idea 2053

[from 'Theaetetus' by Plato, in 13. Knowledge Criteria / E. Relativism / 6. Relativism Critique ]

Full Idea

To say that everyone believes what is the case, is to concede the truth of the oppositions' beliefs; in other words, the person has to concede that he himself is wrong.

Gist of Idea

If you claim that all beliefs are true, that includes beliefs opposed to your own

Source

Plato (Theaetetus [c.368 BCE], 171a)

Book Reference

Plato: 'Theaetetus', ed/tr. Waterfield,Robin [Penguin 1987], p.64