[2] Although most, but not all, of the original Greek text has been lost, there is a Syriac manuscript in the British Museum that contains many clear Origenist theories which had been denounced at the Council of Constantinople in 553.
For instance, the original Kephalaia Gnostika contains content about cosmic restoration and reintegration of all things into God (apokatastasis).
[4] In 2023, an English translation comparing text from different manuscripts (including the Syriac S2 and S1 manuscripts, as well as Greek fragments) was published by Robin Darling Young, Joel Kalvesmaki, Columba Stewart, Luke Dysinger, and Charles M. Stang in The Gnostic Trilogy.
[1] Evagrius's Kephalaia Gnostika has heavily influenced many later texts, including Isaac the Syrian's homilies.
Chapter 3 in the Second Part of Isaac's homilies is also known as the Kephalaia Gnostika, as it was inspired by Evagrius's work of the same name.