translation.en: Now, I should tell you that I have no idea what psychophysics is, although at some point in my life, I dated a girl for two years who was getting her doctorate in psychophysics.
translation.zh: 老实说，我根本不知道精神物理学是干什么的， 虽然我早年曾与一个女孩交往过两年， 她当时读的就是精神物理学博士。