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Around 500 BCE, after the Zhou state weakened and China moved into the Spring and Autumn period, the classic period of Chinese philosophy began. This is known as the Hundred Schools of Thought (; "zhūzǐ bǎijiā"; "various scholars, hundred schools"). This period is considered the golden age of Chinese philosophy. Of the many schools founded at this time and during the subsequent Warring States period, the four most influential ones were Confucianism, Daoism (often spelled "Taoism"), Mohism and Legalism.