Why did emperor qin shi huangdi adopt a legalist philosophy of governing after gaining power in china?

Emperor Qin Shi Huangdi adopted a Legalist philosophy of governing to consolidate his power and unify China under a strong, centralized state. Legalism emphasized strict laws, harsh punishments, and a focus on pragmatic governance, which allowed him to maintain control over a diverse and vast empire. By prioritizing order and obedience, he aimed to eliminate dissent and ensure loyalty among his subjects, ultimately facilitating the rapid implementation of his reforms and projects, such as the Great Wall. This approach was instrumental in establishing the Qin Dynasty's authority and legacy in Chinese history.