This is a new edition of the fragments of 'Anonymus Iamblichi', the mysterious Greek author excerpted by Iamblichus in chapter 20 of Protrepticus. The fragments are an important but overlooked source for early Greek ethical and political thought. Among other things, they criticize traditional forms of social benefaction, and they offer a strikingly modern approach to the analysis of society and economy revolving around the concept of pistis ('trust'). The text and translation are supplemented by a lengthy introduction, which analyses the language and style of the fragments and explores them in the literary and philosophical context of early Socratic literature. The detailed commentary discusses issues pertaining to text and interpretation.