translation.en: He's a graduate student in philosophy, and he's set up a website called 80,000 Hours, the number of hours he estimates most people spend on their career, to advise people on how to have the best, most effective career.
translation.zh: 他是一名哲学系的研究生， 他创办了一个名叫八万小时的网站， 据他估算， 大多数人一生中花在事业上的时间大约是8万小时， 建议别人怎么获得最好的、 最有效的职业生涯。