Who thought to use in the MGM emblem Ars Gratia Artis?

The phrase "Ars Gratia Artis," meaning "Art for Art's Sake," was adopted as the motto of MGM (Metro-Goldwyn-Mayer) by its founding executive, Marcus Loew. This motto was intended to reflect the studio's commitment to artistic Excellence and the value of creative expression in filmmaking. It became a defining element of MGM's identity and branding, symbolizing the company's dedication to producing high-quality films.