“The explorers and the drifters and the spacehands are misfits mostly, and, therefore, men of imagination. The contrast between the rigid functionalism inside a spaceship and the immeasurable glories outside is too great not to have a name. So whenever you stand in a ship’s control room and look out into the bottomless dark where the blinding planets turn and the stars swim motionless in space, you are taking a walk down Paradise Street.”