None. When you walk through that door it's an act of free will, and I will not have anything other than complete silence.

走过那道门,是你的自由，我不会做其他事,除非保持安静。

麻省理工公开课 - 固态化学导论课程节选

If we make--If we solve the problem of boredom setting in with progressive memory loss and radical personality changes, maybe boredom won't set in, but it's not anything that I especially want for myself.

如果用持续失忆,和剧烈人格变化来解决无聊的问题，也许不会产生无聊，但那不是我特别想做的事。

耶鲁公开课 - 死亡课程节选