The great secret, Eliza, is not having bad manners or good manners or any other particular sort of manners, but having the same manner for all human souls: in short, behaving as if you were in Heaven, where there are no third-class carriages. . .
Source: Henry Higgins to Eliza Doolittle, in Pygmalion, act 5.
-- George Bernard Shaw, (Jul 26 1856-1950), Irish dramatist, critic; He is generally recognized as the best dramatist since Shakespeare; promoted social reform with drama of ideas.