This guide is really more strange and unusual than anything you have likely read or heard about. In it, you are invited to embark on a marvelous journey that began eons ago at the advent of your soul's arrival. Praise for Beginner's Guide to Quintessence: "An essential companion guide, centuries in the making." Leonardo da Vinci "At last, the guide for which the whole world has waited. It was well worth the wait." Thomas Jefferson "Quintessence proffers a most sublime and glorious opus." Johann Sebastian Bach

Part of the ensuing Discourse about Light was written at the Desire of some Gentlemen of the Royal-Society, in the Year 1675, and then sent to their Secretary, and read at their Meetings, and the rest was added about twelve Years after to complete the Theory; except the third Book, and the last Proposition of the Second, which were since put together out of scatter'd Papers. To avoid being engaged in Disputes about these Matters, I have hitherto delayed the printing, and should still have delayed it, had not the Importunity of Friends prevailed upon me. If any other Papers writ on this...