MIND, a, m. 1. only sing.
The mental ability that underlies conscious, rational activity.
REASON, a, m. 1. only sing.
The highest stage of human cognitive activity, the ability to think logically, comprehending the meaning and connection of phenomena, understanding the laws of the development of the world and society, and consciously finding appropriate ways to transform them.
Added 3 minutes later
By the way, take a look at the poll - opinions are divided))))