Measuring the happiness of individuals might be likened to attempting to quantify the love that a man has for his wife or the amount of grief that is caused by a death in the family.
Õnne mõõta tähendab sama, mis proovida mõõta armastust, mida tunneb mees oma naise vastu, või leina, mida toob perele lähedase inimese kaotus.