The present article deals with the question of paragraphs in classical Latin texts. In the first half, it presents and illustrates two major problems that can arise from an editor's careless division of a text into paragraphs (i.e. change in reference of anaphoric pronouns; misleading text segmentation).
In the second half, the article claims and tries to prove (largely on the basis of the inner characteristics of texts) that ancient authors (or at least auctor ad Herennium, Cicero, Sallust, and Suetonius) structured their texts into paragraphs, though they used various other means than indentation to signal it to the reader.