/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: kimcheang1 https://public.slidesharecdn.com/v2/images/profile-picture.png By the time we hit fifty, we have learned our hardest lessons. We have found out that only a few things are really important. We have learned to take life seriously, but never ourselves. - Charles Dickens