On the Origin of Species
Darwin's 1859 theory of evolution by natural selection overturned humanity's understanding of life, time, and our place in the cosmos. He did it with extraordinary lucidity and moral courage. Every biologist, philosopher, and thinking person stands downstream of this book.
He restates the same case until readers want to tell him “enough already, I believe!” The geology and fossil chapters in the middle third are where momentum dies, dense enough to be “hard to read without losing flow.” The science underneath has aged in specific ways: Darwin had no mechanism of heredity, writing decades before Mendel, so long passages describe inheritance in terms we now know are wrong. Sceptics add that he “never truly gives an explanation for how microevolution can realistically extrapolate into macroevolution,” and one critic charges an “abuse of arithmetic.” The sixth edition most people own is the padded, hedged one; the tight 1859 first edition is a different book.
The case for it and the rest of the canon open with Pro.
