The Palaiologan Tetragrammic Cross is often associated to the Byzantine Empire as its national flag par excellence. The four betas on each corner (the so-called “firesteels”) originally mean Basileus Basileōn, Basileuōn Basileuontōn, i.e. “King of Kings, Ruling over Kings”.
Your challenge, should you accept it, is to devise a new meaning for the firesteels - a national motto using the four Bs under a Byzantium which has survived into modern times and has undergone a secular republican revolution (though not necessarily abolishing the monarchy). The old meaning, excessively monarchic and religious, is no longer fit in this scenario. The new motto can be spelled either in Greek or Latin.
