Konstantin TsiolkovskyMen 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 ocea… ▶375Death
Konstantin TsiolkovskyMan must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System. ✨ Konstantin Tsiolkovsky (2004). The Aims Of Astronautics, p… ▶369Humanity
Konstantin TsiolkovskyFirst, inevitably, the idea, the fantasy, the fairy tale. Then, scientific calculation. Ultimately, fulfillment crowns the dream.306Thought
Konstantin TsiolkovskyFor me, a rocket is only a means--only a method of reaching the depths of space--and not an end in itself... There's no doubt that it's very important to have rocket ships since t… ▶264HumanityThought
Konstantin TsiolkovskyAll our knowledge - past, present, and future - is nothing compared to what we will never know.3110HopeTime
Konstantin TsiolkovskyThe Earth is the cradle of Humanity. But one doesn't always live in the cradle.288Humanity
Konstantin TsiolkovskyTo set foot on the soil of the asteroids, to lift by hand a rock from the Moon, to observe Mars from a distance of several tens of kilometers, to land on its satellite or even on … ▶2910Time
Konstantin TsiolkovskyA planet is the cradle of mind, but one cannot live in a cradle forever.249Thought
Konstantin TsiolkovskyMan will not always stay on Earth; the pursuit of light and space will lead him to penetrate the bounds of the atmosphere, timidly at first, but in the end to conquer the whole of… ▶175Reading
Konstantin TsiolkovskyFrom the rocket we can see the huge sphere of the planet in one or another phase of the Moon. We can see how the sphere rotates, and how within a few hours it shows all its sides … ▶153Reading
