translation.en: Well resisting temptation is hard, as the 19th century English economist Nassau William Senior said, "To abstain from the enjoyment which is in our power, or to seek distant rather than immediate results, are among the most painful exertions of the human will."
translation.zh: 因为诱惑难以抗拒 19世纪的英国经济学家 老纳索威廉姆说 “放弃我们能得到的享受 或者追寻遥远而不是眼下的结果 是人类意志中 最痛苦的事情之一。”