All of us, whether in or outside the Church of Jesus Christ of Latter-day Saints, are neighbors. Jesus Christ has given the commandment to love and serve one another, for we truly are our brother's keepers. This pure love is also called charity. Wherefore, my beloved brethren, if ye have not charity, ye are nothing, for charity never faileth. It also shows us how powerful and beneficial charity can be.
Charity never faileth.
I've heard some people say that it never fails because when we truly love people with this pure love, we will never give up on them, never forget them, and never slacken our pace. It think this is true. I also think that when we show people this pure love, they cannot help but be affected by it. Eventually they will respond back with friendship and love. When we have this kind of love, we won't fail in our relationships with others.