sked . ‘edit,’  fart could not find it.

    tounding—like someone saying  couldn’tremember on agreed to redo tions and produce a paper.  tired fortensive reflection and scribbling, and at lengteruralis Principia Matica or Matical Principles of NaturalPter knohe Principia .

    Once in a great e and unexpected t people can’t quite decide . Principia s. It made Neantly famous. Fort of s and  person in Britain knigific ac. Even t Germanmatician Gottfried von Leibniz, on ter figyfor tion of t ributions to matics equal to all ted  al may approaceiment t herssince.

    Alt inaccessible books ever ten”

    (Neentionally made it difficult so t  be pestered by matical“smatterers,” as  o t. It not onlyexplained matically ts of  also identified ttractive forcet got t place—gravity. Suddenly every motion in the universe madesense.

    At Principia ’s  on’s tion (e, very baldly, t ation in  raigil some ots to slo it; and t every action e andequal reaction) and ation. tates t every object in ts a tug on every ot may not seem like it, but as you sit  cat—totle(indeed, very little) gravitational field. And t on s is, to quote Feynman again,“proportional to tance bet anotance bets, ttractionbetimes  most of us could make practical use of, but atleast e t it is elegantly compact. A couple of brief multiplications, a simpledivision, and, bingo, you knoational position really universal laure ever propounded by a on isregarded eem.

    Principia’s production   drama. to  as ion