The document discusses teachings from Buddhism, the reign of Qin Shi Huang, and beliefs in China based on three sources. Source A indicates that Buddhist teachings prohibit killing or harming living beings. Source B explains that Qin Shi Huang adopted Legalism to strengthen his rule and unified China through harsh punishments for breaking laws. Source C is an image of Terra Cotta warriors unearthed from Qin Shi Huang's tomb, suggesting he believed in being protected in the afterlife by his army.