Looking for Ink

Ji Mengyan has been obsessed with Pre-Qin literature for most of his life, and is especially interested in the debates between the schools of Pre-Qin thinkers Confucius and Mozi. But his fiancé Chu Hui, although wealthy and handsome, was stingy and cruel. Ruyan couldn't bear it, and while escaping from marriage, she accidentally entered the time and space tunnel. As expected, she traveled to 450 BC and began her journey to find Mozi. "Hey, Kurotsuchi, can you lend me your small hole mirror?" Ruyan played with a small box made of wood. The muscular man with a swarthy face smiled and handed it to her: "No problem, I'll teach you how to complete the small hole imaging operation!" "How much is the tuition for this physics cram school?" Mengyan thought that the tuition was definitely not cheap, and asked weakly, shaking. "Young lady, you are overthinking. A teacher teaches you things and solves your doubts. I always teach for free, so there is no reason to charge for it!" The swarthy man looked at Ji Mengyan who looked even more shocked in surprise. Purpose: May the world be rational and self-sustaining, and may the world be peaceful and prosperous