If you build it, he will come.~ Field of Dreams, 1989 Movie Catchphrase [13002]

Kevin Costner delivers the one line that effectively serves as the undercurrent theme to the movie. While the line is in reference to the character's father, and in a round about way, Shoeless Joe Jackson, a variation of the catchphrase is more commonly used. "If you build it, THEY will come," is often applied in situations of planning, building and goal setting.

It should also be noted that the movie's title serves as a catchphrase too, though to a much lesser extent.