"To delight in something without growing tired" means to take pleasure in doing something and be so immersed in it that one does not feel weary. Its core lies in the causal relationship between "delight" and "without growing tired": because one truly loves and enjoys it inwardly, even if the body is tired or the action is repeated many times, the spirit remains joyful and does not regard it as hardship. This idiom originates from the "Annals of Emperor Guangwu" in the Book of the Later Han. The original text reads, "I myself delight in this and do not feel tired," which is Emperor Guangwu Liu Xiu's own account of his diligence in government affairs and his joy in them. In modern usage, it is mostly used to describe extreme dedication and love for a certain job, hobby, or habit, with a clearly positive connotation, and is often used to praise a focused and persistent spirit. It is used in a wide range of contexts, such as describing researchers conducting experiments forgetfully without eating or sleeping, volunteers persistently engaging in public welfare year after year, or readers staying up all night reading. In terms of cultural background, it reflects the high regard in traditional Chinese culture for "joy in learning" and "joy in work," emphasizing lasting motivation driven by inner interest. Its emotional tone is positive and uplifting, though it can sometimes carry a slightly teasing nuance, referring to being overly addicted to something.
📝 Example
1. After retiring, he goes to the park every day to teach children how to play chess, rain or shine, and he never tires of it. (It means he enjoys teaching chess so much that he does not feel tired at all.)
2. This scientist often stays in the laboratory for more than ten hours at a time, repeatedly verifying data, and he never tires of it. (It means he is immersed in scientific research and feels happy despite the hardship.)