Dogma

Dogma is a rigidly upheld belief or a religion and an unquestionable belief.

After Benjamin Sisko told him that all he was interested in was gaining the advantage, Dukat retorted "Now, don't go spouting off your holier-than-thou Federation fair-play dogma". 

Several weeks later, Elim Garak told Julian Bashir that he was "a prisoner of Federation dogma and Human prejudice". Bashir had told the Cardassian of his dislike for "The Never Ending Sacrifice". 

Referenced dogma

 * Bible
 * Book of the Kosst Amojan
 * Voth Doctrine