Confucius' famous saying. From the Analects of Confucius: "Confucius said,' Learning without thinking is useless, and thinking without learning is dangerous.' ""lost ",confused. Zheng Xuan's Note: Ignorance, ignorance. "Danger" has two meanings: one is danger, and doubt cannot be determined. One is exhausted, and the spirit is exhausted and there is no income. When the former solution. This sentence can be combined with the chapter "Review the past and learn the new". Close friend Yang Shuda's note: "Those who review their past but can't learn new things, learn without thinking, and those who want to know new things without reviewing their past, think without learning." Confucius advocated paying equal attention to learning and thinking, which had a profound influence on Confucius' younger brother. For example, Zi Xia said that he was knowledgeable and thoughtful, and The Doctrine of the Mean said that he was knowledgeable and thoughtful, and they all thought that learning and thinking should not be neglected.

A man without faith does not know what he can do.

A famous saying of Confucius. From the Analects of Confucius, "Confucius said,' People don't believe, and they don't know what they can do.' Zheng Xuan's note: "If you don't know what you can do, it's not feasible to say it.". Kong Anguo's note: "If you don't believe what you say, there is nothing left.". Zhu Xi said: "If a person's face is not true and sincere, then everything he says is false." ("Zhuzi Genre" Volume 24) Jiang Boqian, a close friend, distinguishes the letter from two meanings: "What you say must be true; If you say something, you must be able to practice it. " (Interpretation of Language) Confucius and the later Confucianists attached great importance to faith. "Faithfulness in words and reverence in deeds" (The Analects of Confucius, Wei Linggong) is the principle of Confucius' life.