Hello everybody, how are you doing? My name is Rafael, I'm 18, and brazilian. I will start my studies in college Physics next month, and I just quit Civil Engineering for that. I don't think anyone here disagrees that Physics is the most fun thing to do, along with mathematics wich is, at a good approximation, pretty much the same beautiful art of nature. I met the forum long ago, and I have seen beautiful discussions here and awesome book recommendations. Congratulations for the construction of such a good network of knowledge and salutary reasoning. May you all have a great week!