Confucius' The Great Learning & The Commentary by Tsang

"The Great Learning" was one of the "Four Books" in Confucianism. "The Great Learning" had come from a chapter in the Classic of Rites which formed one of the Five Classics. It consists of a short main text attributed to the teachings of Confucius and then ten commentary chapters accredited to one of Confucius' disciples, Zengzi. The ideals of the book were supposedly Confucius's; however the text was written after his death. The "Four Books" were selected by the neo-Confucian Zhu Xi during the Song Dynasty as a foundational introduction to Confucianism and examinations for the state civil service in China.
Confucius (551–479 BC) was a Chinese teacher, editor, politician, and philosopher of the Spring and Autumn period of Chinese history.