translation.en: I kept going back to that thing that Navid said to me that day in Azadi Square, that without that basic constraint -- a universe that granted mass to matter -- we would not exist.
translation.zh: 我不停回想起那一天，娜维徳 在阿扎迪广场对我说的话， 如果没有这条基本的限制—— 宇宙赋予物体质量—— 我们就不会存在。