Obelix's trademark phrase is "These Romans are crazy" ("Ils sont fous ces romains": in the Italian translation, it is "Sono pazzi questi Romani", which can be shortened to S.P.Q.R., Rome's motto), although he has applied a variant of it to nearly every group he's met in his travels: "These Britons are crazy", "These Corsicans are crazy", etc. This remark is followed by him tapping his forehead. It is a parody of the quote "These Gauls are crazy", which Julius Caesar famously said while describing the Gauls' fighting style during his conquest of the region.