I think that nothing is impossible when you want to fulfill a dream. A lot of people will tell you that you can't do it, that you don't have what it takes, but if it is in your heart and you feel it, there is nothing that will stop you. It is like the sun - you can't block it: it will shine regardless, if that is what you want.
Did not learned men, too, hold, till within the last twenty-five years, that a flying dragon was an impossible monster? And do we not now know that there are hundreds of them found fossil up and down the world? People call them Pterodactyles: but that is only because they are ashamed to call them flying dragons, after denying so long that flying dragons could exist.