It is easy now, a century and a half later, to look back at Haeckel and point out errors. But such bedrock concepts as the primacy of natural selection and the equality of human races were, in his time, questions open to experiment. No fundamental law of logic or physics tells us that they had to have the answers they did. If at times Haeckel presented individual specimens which best fit what he wanted to argue, or even if he allowed his expectations to subtly taint his observations, these are regrettably not such uncommon failings for researchers even today.\n\nWe should not allow a few justified criticisms to detract from Haeckel as an outstanding artist and a romantic personage from the dawn of modern biology. This is not a field where Maxwell's equations spring, fully armored, from the forehead of genius, but one where flesh and blood pioneers make a slow, human voyage into the unknown. Nor should we imagine that a moral stand against prejudice depends on the lucky happenstance that the races are equal - to the contrary, as the cruel history of eugenics should warn us, it requires a moral decision to disregard inequalities in the name of justice, even in pedigrees and genotypes where they might be found. We should forgive Haeckel for his mistakes, and it should not be a guilty pleasure for us to admire his lovely works.