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
Teach thy tongue to say 'I do not know'...Every day, at home, I have the astonishing...When an animal dies, it gives you the chance to love...The first step on the way to victory...Creativity and insight almost always involve...Opportunities are usually disguised as hard work...
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