Cite this Page: Citation
  • Carl Sagan Quotes

  • Carl Sagan

    A blade of grass is a commonplace on Earth it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless what is the value of a human being

  • Science Quotes

Discuss or share more information about this quotation
    • Error:

      Warning: