Apophthegmata Laconica

Plutarch

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

When a youth with a lover in attendance met him one day, and turned colour, he said, You ought to walk with persons such that when you are seen with them you shall keep the same complexion.