Source

Popular sayings (origin unknown)

unknownPopular / anonymous sayingsContemporary (1950 – today)Popular sayingSaying or principle

Sayings and attributions that circulate widely, today mostly online, without a traceable original source. Quotes from here are labelled unverified or misattributed and carry no weight in the scores until an origin is found.

Authorship, dates or origin are uncertain or disputed; read this background with care.

References

https://quoteinvestigator.com/

Quotes (2)

“Happiness equals reality minus expectations.”
— Anonymous / popular saying, Origin not established; widely circulated online
Unverifiedno source yetMaxim: Happiness is reality minus expectations.
“Simplicity is the ultimate sophistication.”
— Unknown (often misattributed to Leonardo da Vinci), Popular attribution to Leonardo; Quote Investigator finds no evidence he said it (earliest Leonardo attribution c. 2000). Closest early match: Clare Boothe Luce, Stuffed Shirts (1931): "the height of sophistication is simplicity."
MisattributedsourceMaxim: Keep it simple.