You can watch if you want just a Carl Sagan Thread about one of the best episodes number 8

"Wisdom is nothing more than healed pain."
Robert E. Lee :tomato: Instead of wanting everyone to share and know of their discoveries the Pythagorean s suppressed the square root of two and the dodecahedron. The outside world was not to know. The Pythagoreans had discovered, in the mathematical underpinnings of nature, one of the two most powerful scientific tools, the other of course is experiment, but instead of using their insight to advance the collective voyage of human discovery they made of it little more than the hocus-pocus of a mystery cult. Science and mathematics were to be removed from the hands of the merchants and the artisans.