The only place where your dream becomes impossible is in your own thinking. Lying to ourselves is more deeply ingrained than lying to others. Theres a fine line between character building and soul destroying. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you.
Security is an insipid thing.
Man is always marveling at what he has blown apart, never at what the universe has put together, and this is his limitation. If you have anything really valuable to contribute to the world it will come through the expression of your own personality, that single spark of divinity that sets you off and makes you different from every other living creature. The more a person analyzes his inner self, the more insignificant he seems to himself. This is the first lesson of wisdom. Let us be humble, and we will become wise.