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#LeeHo-sun #FiftiesTechnique #HowTo Many people worry, they feel so lonely when they become middle-aged.. Answer by Professor Lee Ho-sun, a middle-aged mentor - 📚 Book [FiftiesTechnique] When I turn fifty, no one will give me advice. The technique of '4050 self-mentoring' that creates dignified middle-aged life by Professor Lee Ho-sun, a middle-aged mentor in Korea https://product.kyobobook.co.kr/detai... - [#KnowledgePlatform #HowTo] =========================================== We convey the small changes in our hearts that occur if we invest just a little bit of time during the day. Life Essay Project. Knowledge Platform '#HowTo'