Which religious organization first used the famous tagline "Know Thyself" as part of their advertising and recruitment strategy?

Throughout history, religious organizations have used powerful taglines and slogans to spread their messages, attract followers, and communicate their core values. These advertising techniques have helped shape religious movements and philosophical traditions worldwide. Test your knowledge about famous religious advertising campaigns and taglines that have made a significant impact on spiritual communities and philosophical movements.

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The Oracle at Delphi in Ancient Greece
The Theosophical Society founded in 1875
The Church of Scientology in the 1950s
The Transcendental Meditation movement in the 1960s