do you believe falling in love at first sight?

you may believe such a thing because there is something called chemistry.When a man or a girl is young,they would likely be attracted merely by the look of the person of the opposite sex; when they grow older,they are more sophisticated,there would be less the stuff of chemistry,and they would consider about other elements,such as the social position,wealth and family background of the other person before they decide if they should be get closer to each other.