It is no accident then that the best marriage is one where husband and wife share this perfect friendship. Our modern sensibilities of “best friends" mean that husband and wife must share every activity together, that every shared love must be the same. Au contraire! There must be some form of compatibility, but if both love the good, then their friendship will endure as long as this love lasts. The summum bonum or "greatest good" is God; thus the best marriage puts this love at the forefront of all they do.