Ipse dixit
Ipse dixit is used to identify and describe a dogmatic statement which the speaker expects the listener to accept as valid. Ipse dixit is a sort of arbitrary dogmatism. The only proof we have of the fact is that this person said it.<ref>[http://dictionary.law.com/Default.aspx?selected=1027 "Ipse dixit at Law.com]; retrieved 2012-12-10.</ref>