There was once a statement made by a psychologist that said that 80 percent of the pursuit of happiness is really just about the genes, and it's as difficult to become happier as it is to become taller.
Un psychologue a déclaré il y a longtemps que 80 pour cent de la poursuite du bonheur ne dépend que des gènes, et qu'il est aussi difficile de devenir plus heureux qu'il l'est de devenir plus grand.