Philosophiæ Naturalis Principia Mathematica vs Demian
Which book? Pick one and see how the world splits.
- Philosophiæ Naturalis Principia Mathematica Isaac Newton · 1687 50% · #142 in the world
- Demian Hermann Hesse · 1919 50% · #144 in the world
The world's split right now, from everyone's votes on Books.