"Was not Hypatia the greatest philosopher of Alexandria, and a true martyr to the old values of learning? She was torn to pieces by a mob of incensed Christians not because she was a woman, but because her learning was so profound, her skills at dialectic so extensive that she reduced all who queried her to embarrassed silence. They could not argue with her, so they murdered her."

Next Quote

Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had argued that humanity was divided into Greeks and everybody else, whom he called barbarians and that the Greeks should keep themselves racially pure. He thought it was fitting for the Greeks to enslave other peoples. But Erathosthenes criticized Aristotle for his blind chauvinism, he believed there was good and bad in every nation.

— Carl Sagan