make up one's mind, To decide something after consideration.
mind your own business, To not interfere in someone else's affairs.
out of sight, out of mind, When something is not visible, it is easily forgotten.
Word Origin
Language
Old English
Original word
gemynd
Originally meant
memory, thought
Background
The word 'mind' comes from the Old English 'gemynd', which meant memory or thought. Over time, it evolved to encompass the broader concept of thinking and awareness.