Law of Fives
The Law of Fives simply says that everything is somehow related to five. According to a much used quote from Principia Discordia:
"All things happen in fives, or are divisible by or are multiples of five, or are somehow, directly or indirectly, appropriate to 5."
The Law of Fives are described, for example in The Illuminatus Trilogy and Principia Discordia, both by Robert Anton Wilson