/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: RoshaSandaruwan https://public.slidesharecdn.com/v2/images/profile-picture.png "I failed in some subjects in exam, but my friend passed in all. Now he is an engineer in Microsoft and I am the owner of Microsoft." — Bill Gates We choose to go to the moon not because it is easy but because it is hard. _ John f. kennedy