30 Quotes by Konstantin Tsiolkovsky


  • Author Konstantin Tsiolkovsky
  • Quote

    Men are weak now, and yet they transform the Earth's surface. In millions of years, their might will increase to the extent that they will change the surface of the Earth, its oceans, the atmosphere, and themselves.

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  • Author Konstantin Tsiolkovsky
  • Quote

    Man must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System.

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