what is love MV 问世间“爱”为何物? What is Love?

问世间“爱”为何物? What is Love?  

"What is love" was the most searched phrase on Google in 2012
according to the pany. In an attempt to get to the bottom of the question once and for all
the Guardian has gathered writers from the fields of science
literature
religion and philosophy to give their definition of the much-pondered word.