My call tonight is for every American to commit at least two years ? four thousand hours over the rest of your lifetime ? to the service of your neighbors and your Nation.

• 今晚，我向所有的美国人发出呼吁：在你们有生之年至少抽出两年的时间，也就是4千多个小时，来服务于你的社区邻里和你的祖国。