The "golden ratio" is a mathematical term that refers to a certain proportion or ratio found in nature, design, and art. It is approximately equal to 1.618 and is considered aesthetically pleasing and visually harmonious. Full definition
If he's right only in his assertion that the most pleasing faces have mouths that relate to the noses above them by the ancient and mysterious golden ratio, that's not nothing. (discovermagazine.com)
This is one of those photos that deserves its own golden ratio meme, that should seemingly reveal something deep and meaningful about the subject. (redbookmag.com)
This idea has been explained in ancient Greek philosophy with concepts of microcosm and macrocosm and epitomized in the theory of golden ratio. (widewalls.ch)