Which language learning product tagline created a paradigm shift in marketing by focusing on the embarrassment of not knowing a language rather than the benefits of learning one?

Effective language learning products rely heavily on taglines that tap into consumer psychology. These memorable phrases often promise transformation, ease, or speed—appealing to our desires for self-improvement and efficiency. Test your knowledge about famous language learning product taglines and the psychological principles they employ to attract consumers. Do you recognize which famous tagline genuinely revolutionized language product marketing?

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"The fastest way to learn a language guaranteed" (Pimsleur)
"Learn a language like a child" (Rosetta Stone)
"Don't be embarrassed by your accent" (Babbel)
"He's sitting with his mother-in-law. He's been sitting with her for three hours and hasn't said a word. He doesn't speak Italian." (Berlitz)