Hope is a waking dream.
Those who dream by day are cognizant of many things which escape those who dream only by night.
Edgar Allan Poe
You see things; and you say, 'Why?' But I dream things that never were; and I say,
George Bernard Shaw
We need men who can dream of things that never were.
John F. Kennedy
Dreams come true. Without that possibility, nature would not incite us to have them.