Sir Issac Newton
| Isaac Newton: Mathematical Principles excerpts of Newton's text. | |
| Newton's `Principia', Book Two. in Latin and English with contemporary criticism of Newton's proof. | |
| Voltaire: Letters on Newton from Letters on The English or Lettres Philosophiques, c. 1778. | |
| Newton's Mathematical Principles of Natural Philosophy | |
| Isaac Newton: Optics from the Modern History Sourcebook. | |
| Newton's Life | |
| Isaac Newton (1642 - 1727) From `A Short Account of the History of Mathematics' (4th edition, 1908) by W. W. Rouse Ball. | |