Apophthegmata Laconica

Plutarch

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

Leotychidas the First, when somebody remarked to him that he was very changeable, said, Yes, because of varying occasion; not like all you because of your baseness.