A Number Behind Perfection

Φ = 1.618 033... . Our attraction to someone increases if their face is in proportion, and follows the golden ratio.

This means that when the sum of a and b is divided by the larger part, a, it gives the same number, a multiple of 1.618033... as when a is divided by b. This can be repeated for any number and it will always give the same ratio.

This face is seen as attractive because it follows the golden rule, you could take from the hair line to the bottom of the nose as a and from the bottom of the nose to the bottom of the chin as b.

Leonardo da Vinci found this in his Vitruvian Man, taking the length from the belly button to the footas a, and from the belly button to the head as b.

I think this explains it a lot more.

http://blog.echoenduring.com/2010/07/31/imperfect-perfection-the-golden-ratio/