I disagree, well not with everything, as Loinen writes a lot of sense but in this case I don't believe that love really equates to just knowledge.

I am especially a believer in love at first site, mainly because it happened to me, and led me to some of the most wonderful years of my life. :-)

But that is beside the point. I think we love our family not because we know them for a certain length of time, but the quality of the knowledge. To rephrase,

Love, it's not who you know, it's what you know, and more importantly, how you feel about what you know.

You may love a girl with all your heart, simply because when you are near her she makes your heart race, and she has a glow that you can never describe to anyone else. You may love someone for the kindness they have always showed you no matter what. You may love because it is all you know how to do, and that is good. Love is the most wonderful thing in the world, and I agree with Loinen that it is unrecuperable, or as I prefer to call it: real.

BTW. I also like Smashing Pumpkins.