Seven weeks

Use in the book

Theon says that an embryo seems to reach completion in seven weeks, as Empedocles hints in the Purifications. His context, identified by the edition, is a discussion of the power of seven. That setting matters: the surviving evidence is a later author’s use of Empedocles within a numerical argument. The cautious verbs “seems” and “hints” are part of what has been transmitted, not dispensable hesitation to be replaced with a categorical biological assertion.

“Completion” is also underdetermined. The report does not specify which structures are complete, what criterion of development is intended, or whether the statement concerns every pregnancy. It cannot responsibly be turned into a modern claim about viability, personhood, or the timing of all organ formation. The secure historical finding is that Theon attributes a seven-week developmental significance to Empedocles.

The naming of the Purifications is unusually valuable evidence of ancient attribution to a work. Even so, it does not prove where within that work the material occurred or settle the broader one-poem/two-poem dispute. The fragment’s placement among pieces of uncertain location in this edition suitably distinguishes the transmitted report from a recovered run of verse.

Places to read

1. B 153a (report)Theon reports apparent embryonic completion in seven weeks and attributes the hint to the Purifications.
2. B 153a (editorial discussion)The local note explicitly distinguishes reported content from a verbatim Empedoclean quotation.
3. B 68A separate verse names the tenth of an eighth month; it does not identify the same developmental milestone.

Translation in this edition

A B-number does not guarantee direct quotation. The form βρέφος and the full Greek sentence belong to Theon’s report. Even the seven-week phrase is reported Empedoclean content, not independently preserved verse.