Source: https://www.researchgate.net/profile/Jan-Keppler/publication/41219835_L'economie_des_passions_selon_Adam_Smith_les_noms_du_pere_d'Adam/links/55dda0bf08ae591b309b1a82/Leconomie-des-passions-selon-Adam-Smith-les-noms-du-pere-dAdam.pdf