因此，乐趣和避免痛苦是立法者所考虑的目标。
Pleasures， then， and the avoidance of pains， are the ends that the legislator has in view.
Mathematics is the art of asking the right questions and then finding their answers.
数学是给不同事物赋予相同名称的艺术。
最好的报复就是继续前进，放下过去。