Ancient poets and sages have called the earth the mother of all things. They could hardly have chosen a more attractive name, or one that was more appropriate. From her lap springs everything that possesses life and motion, everything that flourishes, fades, and has its fated day, and she tirelessly provides material for the countless varied bodies that are created --- and then abandoned --- by the life force in its unending, hidden progress through nature. And meanwhile the earth itself is running its race around the sun with incredible speed, obedient to fixed, immutable laws. Human intelligence has succeeded in understanding these laws, and it is now possible to determine earth's position in time and space, relative to the sun and other heavenly bodies, at any point in the future, just so long as the present frame of our solar system is not disturbed by any unusual, large-scale events.
Source: On the Nature and Origin of the Earth
Contributed by: Meenakshi