A rude nature is worse than a brute nature by so much more as man is better than a beast: and those that are of civil natures and genteel dispositions are as much nearer to celestial creatures as those that are rude and cruel are to devils. Margaret Cavendish
Of all celestial bodies within reach or view, as far as we can see, out to the edge, the most wonderful and marvellous and mysterious is turning out to be our own planet earth. There is nothing to match it anywhere, not yet anyway. Lewis Thomas
Labor to keep alive in your breast that little spark of celestial fire, called conscience. George Washington
If parents are the fixed stars in the child's universe, the vaguely understood, distant but constant celestial spheres, siblings are the dazzling, sometimes scorching comets whizzing nearby. Alison Gopnik
For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study. Nicolaus Copernicus