“The rock, for its part, is not even aware of our existence because we are alive for only a brief instant of its lifespan. To it, we are like flashes in the dark.”
-Michael Crichton, The Andromeda Strain (Andromeda, #1)
For millions of years, the Earth formed because the sun provided energy to it and maintained a suitable distance to make it habitable.
The Earth is like a dot compared to the other things in the universe.
Maybe we have only one living earth and this is our only home.
Mark Tacastacas 
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