Jabarkan Tulisan karya Newton dari Isaac Newton

Newton's works – full texts, at the Newton Project

The Newton Manuscripts at the National Library of Israel - the collection of all his religious writings

"Newton's Principia"  – read and search

Descartes, Space, and Body and A New Theory of Light and Colour, modernised readable versions by Jonathan Bennett

Opticks, or a Treatise of the Reflections, Refractions, Inflexions and Colours of Light, full text on archive.org

"Newton Papers" - Cambridge Digital Library

(1686) "A letter of Mr. Isaac Newton... containing his new theory about light and colors" Philosophical Transactions of the Royal Society, Vol. XVI, No. 179, p. 3057-3087. - digital facsimile at the Linda Hall Library

(1704) Opticks - digital facsimile at the Linda Hall Library

(1719) Optice - digital facsimile at the Linda Hall Library

(1729) Lectiones opticae - digital facsimile at the Linda Hall Library

(1749) Optices libri tres - digital facsimile at the Linda Hall Library