Going through the lessons, several theories and common senses have been forced into our brain. Something relates to our daily life and yet, not being known unless one has been told. Looking at the formulae given on the paper, was certainly amazed by those who came out with them, after all the trial and error. And now, all we got to do is to follow the guideline created, have a smooth and easy life, probably not. Come to think of it, we are all being spoiled by the previous generations, with all the knowledge founded and being 'renewed' over the years, though we ourselves too can come up with something new. How much longer to the next newly discovered theory?