Why can I teach my (tremere/ventrue/tzimisce/ghouled mage) friend Assamite Sorcery?
First off, if you are asking this question, BAD MONKEY!. Ok now that I have that off my chest. The simple reason is that it is against the laws of Haqim, one being the law of the word. In this law it states that you shall not give secret information to outsiders. And that being said Sorcery would be considered secret.