Lawrence of Arabia - Seven Pillars of Wisdom, Suppressed introductory chapter, first published 1939, Penguin edition p. 23

All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act out their dream with open eyes, to make it possible.

- Lawrence of Arabia - Seven Pillars of Wisdom, Suppressed introductory chapter, first published 1939, Penguin edition p. 23