Truth in a Well.
This expression is attributed both to Cleanʹthēs and to Democʹritos the derider.
“Naturam accusa, quæ in profundo veritatem (ut ait Democritus) penitus abstruserit.”—Cicero: Academics, i. 10.
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Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.