If one is lucky, a solitary fantasy can totally transform one million realities. It is in our idleness, in our dreams, that the submerged truth sometimes comes to the top. We live in a fantasy world, a world of illusion. The great task in life is to find reality. The dream of reason produces monsters.
Imagination deserted by reason creates impossible, useless thoughts.
United with reason, imagination is the mother of all art and the source of all its beauty. Heinlein One's real life is so often the life that one does not lead. All acts performed in the world begin in the imagination.