把这一句，留给此刻的你
Life has obliged him to remember so much useful knowledge that he has lost not only his history, but his whole original cargo of useless knowledge; history, languages, literatures, the higher mathematics, or what you will - are all gone.
生活迫使他记住那么多有用的知识，以至于他不仅失去了他的历史，还失去了他原有的全部无用知识;历史、语言、文学、高等数学，或者任何你想学的东西，都消失了。