It's a lot easier to focus on one habit for a month than it is to try to "focus" on five, and it's much more gratifying to make substantial progress on one than to creep on five.

在一个月之内把注意力集中到一个习惯上比集中到五个习惯上要容易得多，同样，在一个习惯上面持续进步比在五个习惯上面爬行更让人愉快。