子曰:“吾十有五而志于学,三十而立,四十而不惑,五十而知天命,六十而耳顺,七十而从心所欲,不逾矩。”
孔子说:“我十五岁立志于学习,三十岁有所建树,四十岁不困惑,五十理解自然规律,六十明辨是非,七十随心所欲,不违规。”
Learning is the process of modifying symbolic structures to improve performance.
Il n'est point de secrets que le temps ne révèle.
The sociological imagination enables us to grasp history and biography and the relations between the two within society.