The Philosophical and Mathematical Commentaries of Proclus on the First Book of Euclid's Elements (vol. 1 of 2): To Which Are Added, a History of the Restoration of Platonic Theology, by the Latter Platonists: And a Translation from the Greek of Proclus's Theological Elements

Proclus Diadochus, the last great head of the Athenian Academy, believed geometry was not merely a science but a sacred pathway to divine truth. This 1792 English translation of his commentaries on Euclid's Elements reveals the extraordinary moment when Greek mathematics and neoplatonic metaphysics became indistinguishable disciplines. Proclus reads Euclid not as a textbook author but as a theologian in geometric form, arguing that the rigorous demonstration of a single proposition lifts the mind from the mutable world of sense toward the eternal realm of Forms. The commentary moves from technical geometric analysis to soaring meditations on the nature of number, proportion, and the One itself. For anyone seeking to understand how the ancients conceived the relationship between mathematical certainty and metaphysical knowledge, this text is an indispensable primary source. It captures a worldview in which geometry, theology, and philosophy were not merely related but fundamentally unified.