The Spring and Autumn Period and the Warring States Period were a very important period in Chinese history. Many important schools of thought and ideas appeared. The following are some of the main schools and ideas: 1. Confucianism: Confucianism was one of the most influential schools of thought during the Spring and Autumn Period and the Warring States Period. The main idea of Confucianism was "benevolent government" and "human nature is good". It advocated that people's morality and character should be shaped through education so that they could become true gentlemen. 2. Daoist School: Daoist School was another important school of thought during the Spring and Autumn Period and the Warring States Period. The main ideology of Taoism was "Dao" and "Nature", which advocated compliance with nature, harmony, and freedom. 3. Mohism: Mohism was another important school of thought during the Spring and Autumn Period and the Warring States Period. The main ideology of the Mohist school was "universal love" and "non-aggression". It advocated loving all life and opposing war and aggression. Legalism School: Legalism School was one of the important schools of thought during the Spring and Autumn Period and the Warring States Period. It advocated governing the country through law. The main idea of Legalism was to govern by law. Legalism emphasized the authority and importance of law. Military School: The Military School was one of the important schools of thought during the Spring and Autumn Period and the Warring States Period. It advocated defending the country through war. The main ideas of the School of Military Strategy were " a strong general makes a country strong " and " the army is unpredictable ", emphasizing the change and flexibility of the army. These schools of thought influenced and complemented each other during the Spring and Autumn Period and the Warring States Period, forming a unique period and culture in the history of Chinese thought.