The Life of Sir Isaac Newton

appear attraction believe blue bodies Cambridge cause centre colours communicated consequence considered contained continued correspondence curves dated death determine direction discovered discoveries distance doctrine doubt earth East Lothian edition equal experiment explain express fact force give given glass gravity heat important inquiries invention labours Leibnitz letter light London manuscript mathematical matter means method mind moon motion nature never object observations obtained opinion Optics orbit original particles pass person philosopher planets plate possessed present Principia principles prism produced published rays reason received referred reflected refraction remarkable respecting Royal Society says seems seen Sir Isaac Newton space spectrum supposed surface telescope theory thing thought tion took transmitted true truth universe views writings written yellow