To dream anything you want to dream. That's the beauty of the human mind. To do anything that you want to do. That is the strength of the human will. To trust yourself to test your limits. That is the courage to succeed.
"You gain strength, courage, and confidence by every experience in which you really stop to look fear in the face... The danger lies in refusing to face the fear, in not daring to come to grips with it... You must make yourself succeed every time. You must do the thing you think you cannot do." - Eleanor Roosevelt