Apophthegmata Laconica

Plutarch

Plutarch. Moralia, Vol. III. Babbitt, Frank Cole, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1931 (printing).

When he invaded Arcadia, he learned that the Eleans were supporting the Arcadians, and so he sent this letter to them: Archidamus to the Eleans. Quiet is a good thing. [*](The saying is attributed to Periander by Diogenes Laertius, i. 97.)