Webster's Dictionary defines love as "the affection for another arising from kinship or personal ties." However, Wikipedia defines love as “an emotion of strong affection and personal attachment.” In a philosophical context, love is a virtue that represents all human kindness, compassion and affection. Who is right? Love is an abstract noun, which means that there is no concrete form of love. So who can say who is right or wrong? Love can only be defined by those who claim to fall into it. But researchers can look for reasons. Most aspects, such as physical appearance and animal instinct, can be explained by human body chemistry, but aphrodisiacs are a completely different story. Anyone who has studied psychology has heard Sigmund Freud's theory that all girls fall in love with their daddy and everyone else. boys fall in love with their mother. Although most people would automatically disagree, cognitive psychologist David Perrett has a different opinion. He has developed new software that allows you to transform people's faces as you wish. In one of his experiments, he transformed a subject's face into that of the opposite sex and mixed that image with a random selection of others. He then asked the subjects to identify what appealed to them most. In all cases, the subject would choose the transformed image. Perrett theorizes that this is because people are more comfortable with the faces and features they grew up around: those of their parents, their siblings, and their own faces. (Perrett) However, facial features are not the only thing that determines attractiveness and different people have different criteria for each aspect. There are aspects such as hairstyle or color, shape or color of eyes, ...... middle of paper ...... Journal of the History of Sexuality. 9.1/2 (2000): 25. the web. November 8, 2011. .Meredith, Michael. “Human vomeronasal organ function: a critical review of best and worst cases.” Chemical senses. 26.4 (2001): 433-445. Internet. November 8, 2011. .Morris, JC “To Morris, Amanda N..” May 10, 1863. Letter 1 from Special Collections. Ed. Anne Laurent. Blacksburg, VA: Virginia Polytechnic Institute and State University, 2000. Web. November 8, 2011. <http://spec.lib.vt.edu/cwlove/jcmorris.html>.Perrett, David. “What makes us attractive – or not?.” Los Angeles Times. Interview conducted by Lori Kozlowski. December 10, 2010. Web. .