What is the "three virtues of a gentleman" mentioned by Confucius?

Confucius said, "The knower is not confused, the benevolent is not worried, and the brave is not afraid."

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Confucius said, "The wise will not be confused, the wise will not be sad, and the brave will not be afraid."

In Confucian traditional morality, wisdom, benevolence and courage are three important categories. The Doctrine of the Mean says: "Knowledge, benevolence and courage are the virtues of the world." Confucius hopes that his students can have these three virtues and become real gentlemen.