Love is an integral virtue i.e. love is essential for completeness of every human life/society. Oh! Yes, anyone that lacks love is incomplete & can't make positive impact in the lives of people around him/afar off.
Love is life. All, everything that I understand, I understand only because I love. Everything is, everything exists, only because I love. Everything is united by it alone. Love is God, and to die means that I, a particle of love, shall return to the general and eternal source.
Love is Light and it has no end. Love is great suffering. It cannot eat, it cannot sleep. It is mixed with sin in equal parts. And yet it is better to love. In love one can be mistaken, and through suffering he expiates for his mistakes.