There is no royal road to geometry (or biology, geology or theology)

Little is known about the great ancient mathematician Euclid. In a 5th century CE edition of Euclid’s Elements (the work that is the basis of geometry textbooks from ancient times to the present day), Proclus Lycaeus notes that when Ptolemy I (ruler of Egypt from 323 BCE – 283 BCE) grew frustrated at the degree

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