It was recently suggested to me that if you want to understand love, study the appearance of the One Another's of the Bible.  Indeed, if you look at the occurrence of the phrase "one another" in the New Testament, you will find how we are to treat other people.

Jesus instructed us that the greatest commandment was to love God and that the second was to love others.  As you study the one another's of the Bible, you will find exactly how we are to treat each other and how love is displayed.