Hellow guys, Welcome to my website, and you are watching 서울대 교수가 30년간 간직한 인생책 단 1권 (황농문 교수). and this vIdeo is uploaded by 라이프해커,자청 at 2025-10-30T02:00:57-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.