It is a simple tittle or sentence, apparently but these four letters and two the most, it can express the deepest feeling in the earth, when a man loves, besides it is a famous song theme, "when a man loves a woman", I would like that the man and the woman loves without any complex or restrictions, and without waiting a back help or reward, we must love each other, imagine if all men and women love each other, the world would be different, people would help more, maybe there won`t be poor people, a different world, Jesus said it, If you love each others, it wouldn't wonderful