This is a saying of the Amish.
They recognize that for relationships to be successful, boundaries must exist.
A fence is different from a wall.
A wall doesn’t allow any communication or influence at all. A fence simply provides a boundary of safety and ownership.
When we erect good boundaries around our lives, it allows us to have strong, close relationships with others while maintaing our independence.
Conflict comes when one doesn’t respect the boundaries of another.
Joel Stiff's Adventure 