To define love is to define everyone's sole purpose in life. Love is the greatest inspirational idea in our lives, without love, there would be no Shakespeare, no Mark Twain, no Christopher Columbus, no Romans, etc. The most violent people in the world are those who have never known love, and if they were just shown nothing but love for the rest of their lives from any point in their life, they would learn to really appreciate life. This insight comes from experience. Learn from it.