 We have here two paradoxes of an almost identical structure belonging to two distinct classes of paradoxes: one is semantic and the other set-theoretic. What this teaches us is that even if paradoxes seem different by involving different subject matters, they might be almost identical in their underlying structure. Thus in many cases it makes most sense to study the paradoxes of self-reference under one, rather than study, say, the semantic and set-theoretic paradoxes separately. 