> Until mid-20th century, mathematics had never been communicated in this austere manner. Euclid. The Elements may have been meant to go through a teacher who

> Until mid-20th century, mathematics had never been communicated in this austere manner. Euclid. The Elements may have been meant to go through a teacher who'd help you connect to it, who knows? But the text itself is totally definition, theorem, proof, repeat, and that's all that survived to reach us.