Wu Xing
The ancient Chinese philosophy known as Wu Xing is based on cycles of five.  There are five seasons of the year, and the extra one is late summer, now playing.
Our culture is totally four-centric (Wiccans notwithstanding). Five seasons just seems wrong.  You can have a four cylinder or a six cylinder, but not a five (unless you find an old Audi). Can you think of a song in five other than Take Five?
Our digits come in fives. So why is five such a misfit?
