Ernst Haeckel’s Die Welträtsel (1899) was a publishing sensation: Darwin’s German champion proposing to dissolve the seven ‘world-riddles’ — matter, motion, life, consciousness among them — into a single monist philosophy where science leaves no room for supernatural remainder.
Loved, loathed and read in the hundreds of thousands, it defined a generation’s scientific worldview. Download the free EPUB, in the original German, for the age of science at its most confident.