Konstantin Tsiolkovsky
Man must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System.
More quotes and aphorisms
Your mind will answer most questions if you learn...I don't have a type. But one thing I can say...Roast beef, medium, is not only a food...Change is inevitable. Things absolutely cannot stay...If falling into desperation worked to make things...The only way to discover the limits of the possible...