Confucius (551 BC–479 BC): Chinese teacher, editor, politician, and philosopher of the Spring and Autumn Period of Chinese history. The philosophy of Confucius emphasized personal and governmental morality, correctness of social relationships, justice and sincerity. His followers competed successfully with many other schools during the Hundred Schools of Thought era only to be suppressed in favor of the Legalists during the Qin Dynasty. Following the victory of Han over Chu after the collapse of Qin, Confucius's thoughts received official sanction and were further developed into a system known as Confucianism.
1.) Wolfram Eberhard (1986). A Dictionary of Chinese Symbols: Hidden Symbols in Chinese Life and Thought. Psychology Press. p. 82. ISBN 9780415002288. "Confucius was an agnostic, but he did not deny the existence of supernatural beings."
2.) John Hersey (1986). The call. Penguin Books. p. 208. ISBN 9780140086959. "The second, Confucius, was a humanist, an agnostic, and a supreme realist."
3.) Lee Dian Rainey (2010). Confucius & Confucianism: The Essentials. John Wiley & Sons. p. 62. ISBN 9781405188418. "Others have read what Confucius said about ritual and the supernatural and concluded that Confucius was an agnostic and not at all interested in the religious side of life."