Mankind will not forever remain on Earth but, in the pursuit of light and space, will first timidly emerge from the bounds of the atmosphere and then advance until he has conquered the whole of circumsolar space.

From the moment of using rocket devices, a great new era will begin in astronomy: the epoch of the more intensive study of the firmament.

The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever.

The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever.

I do not remember how it got into my head to make the first calculations related to rocket. It seems to me the first seeds were planted by famous fantaseour, J. Verne.