*[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565763/ ''The relationship between happiness and quality of life: A model for Spanish society''], ''PLoS One''. 2021; 16(11): e0259528. Published online 2021 Nov 3. doi: 10.1371/journal.pone.0259528
*[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3160511/ ''Can Seeking Happiness Make People Happy? Paradoxical Effects of Valuing Happiness''], ''Emotion''. Author manuscript; available in PMC 2012 Aug 1. Published in final edited form as: Emotion. 2011 Aug; 11(4): 807–815. doi: 10.1037/a0022010
== Hapiness quotes ==