The purpose of this study is to provide an account of the fallaciousness of begging the question without thereby indicting as fallacious all otherwise acceptable deductively valid reasoning. The solution that we suggest exploits the intuition that all good arguments are weakly circular. The fallaciousness of begging the question is not that the reasoning is circular simpliciter. Rather, begging the question is a fallacy because the conclusion relies on an undischarged assumption that the audience cannot accept without further argumentation. In (...) the face of such an argument the arguer might just as well have merely asserted the conclusion. (shrink)