en: It is about how satisfied or pleased the person is when that person thinks about her life. Very different notion. Anyone who doesn't distinguish those notions is going to mess up the study of happiness, and I belong to a crowd of students of well-being, who've been messing up the study of happiness for a long time in precisely this way.
fr: Mais comment on est satisfait, ou content, en pensant à notre vie. Notions très différentes. Quiconque ne distingue pas ces deux notions est sur le point de rater l'étude du bonheur, et j'appartiens à la foule d'étudiants du bien-être, qui a raté l'étude du bonheur pendant longtemps, précisément de cette façon là.