Quadrant2: Retirement - Start early

My friend, Sai, just wrote about how you can achieve your retirement goals if you start little but start early. In his post, Quadrant2: Retirement - Start early, he also has a link to his presentation which contains links to more resources. I have read about this at many other places too and completely believe in this. Time, is that rare resource which if not used wisely, can never be returned.