Research out of the Wharton School of the University of Pennsylvania suggests that people see New Year’s Day, their birthdays and even the start of a new month or week as “temporal landmarks†— an imaginary line demarcating the old “inferior†self from a new and improved version. That explains why we often fail at resolutions — our new selves are usually not much better than the old ones. But it also suggests how we might stick to our resolutions — use more temporal landmarks to reach our goals.