表示论提供了表达许多数论现象的语言。
人们为了保护自己不受伤害,会伤害他人。
The mind once enlightened cannot again become dark.
关键是专注于自己的道路。
The pace of change demands agility—both in thought and action.
The truth is, I often like women. I like their unconventionality. I like their completeness. I like their anonymity.