There are two types of people in the world. Although they have equal degrees of health and wealth and the other comforts of life, one becomes happy, the other becomes miserable. This arises from the different ways in which they consider things, persons, and events, and the resulting effects upon their minds. One is said to be optimistic and the other pessimistic about everything around them. People who are to be happy fix their attention on the conveniences of things, the pleasant parts of conversation, the well-prepared dishes, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the contrary things. Therefore, they are continually discontented themselves. By their remarks, they sour the pleasures of society, offend many people, and make themselves disagreeable everywhere.
世界上有兩種人。雖然他們擁有同等程度的健康和財富以及生活的其他舒適，但其中一個會變得快樂，另一個會變得痛苦。這是由於他們看待事物、人和事件的不同方式，以及由此對他們的思想產生的影響。一個被認為是樂觀的，另一個被認為對周圍的一切都是悲觀的。快樂的人把注意力集中在事物的便利、交談中愉快的部分、精心準備的菜餚和好天氣上。他們喜歡快樂的一切。那些不快樂的人只會思考和談論相反的事情。所以，他們常常感到不滿。他們的言論破壞了社會的樂趣，冒犯了許多人，使他們在任何地方都不愉快。