In Pygmalion, language is portrayed as a powerful tool that can influence a person's position in society.
Shaw uses the character of Henry Higgins, a phonetics expert, to show how language can be used to change someone's social status.
Eliza Doolittle, a poor flower girl, learns to speak more "properly" through Higgins' teachings, which helps her transition from a lower class to a more refined, higher social position.
Shaw critiques the way language is used to judge and control people's identities and opportunities, emphasizing how mastery of language can be the key to social mobility.