The Law of fours is the primary difference between Discordians and Accordians. While the original doctrin of Discordianism held that all things are related to fives, the wise and wonderful Father Nemo Proprius noted during The Accord that the rule was self effacing, since all fives should also happen in fives, and hence be in 5 5's, or 25's (25s). Since this is obvious rubbish that leads to a never ending cycle of repetitive redundancy (Law of 625, law of 390625, etc), accordians long ago dismissed the rule as partial and incomplete rubbish, replacing it instead with the much more reasonable law of fours. Accordians hold the law of fours above all else and it is never wrong.
See also Law of 25s