 Epicurus says some people have disordered congenital dispositions, e.g., they are naturally hotheaded due to their atomic make-up. But unlike wild animals, we blame a person who develops badly and remains a hothead as an adult, because the way we actually develop depends on us, and not on the nature of our atoms. We each have “seeds”, psychological potentials to develop one way or the other, and which “seeds” develop depend on us and on beliefs of our own making. Further evidence for our control over ourselves, says Epicurus, is that we rebuke, oppose, and reform each other as if the responsibility for what we do lies also “in ourselves”, not just in our congenital dispositions and in our environment. If somebody argues against this thesis and maintains that everything we do is necessitated, he refutes himself. That is because in his action of engaging in debate, the person is assuming that he is responsible for reasoning correctly and that his opponent is responsible for talking nonsense.