All nature is a vast symbolism: Every material fact has sheathed within it a spiritual truth.
Edwin Powell HubbleAstronomy is something like the ministry. No one should go into it without a call. I got that unmistakable call, and I know that even if I were second-rate or third-rate, it was astronomy that mattered.
Edwin Powell HubbleThere we measure shadows, and we search among ghostly errors of measurement for landmarks that are scarcely more substantial.
Edwin Powell HubbleThe great spirals, with their enormous radial velocities and insensible proper motions, apparently lie outside our Solar system.
Edwin Powell Hubble