Hellow guys, Welcome to my website, and you are watching 하버드 연구: 성공한 사람들의 공통점은 '지루할 정도의 반복'이었다. and this vIdeo is uploaded by The Rich Lab at 2025-11-18T01:01:10-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.