A fine quotation is a diamond on the finger of a man of wit, and a pebble in the hand of a fool. – Joseph Roux (1834–1905), Meditations of a Parish Priest, 1886, translated

[Q]uotations, like the words of our language itself, change in relevance and currency. – Robert Irvine Fitzhenry (1918–2008), The Harper Book of Quotations

The lips of the wise are as the doors of a cabinet; no sooner are they opened, but treasures are poured out before thee. Like unto trees of gold arranged in beds of silver, are wise sentences uttered in due season. – The Economy of Human Life, Translated from an Indian Manuscript, Written by an A

There are gems of thought that are ageless and eternal. – Cicero, quoted in Lillian Eichler Watson, Light from Many Lamps, 1951