Space navigation is not a matter of one person or a group of people. It is a regular historical process in the development of mankind. ——Gagarin

If God doesn’t want humans to explore the universe, he just needs to knock down the ladder to heaven. ——Braun

The universe is endless life and rich power, but it is also strict order and perfect harmony. ——Zong Baihua

Space is not a space for astronauts, space is a space for everyone. ——Danny Storti

For the peace and progress of all mankind, the Chinese came to space. ——Yang Liwei

The earth is the cradle of mankind, but mankind will not stay in the cradle forever. ——Tsiolkovsky.

When I look at the earth from the moon, I can't see any national boundaries. I feel that the earth is a whole, and my whole mind is broadened. ——Colonel Cernan, the last American man to land on the moon

The sky and the earth are so different that I feel the infiniteness of the universe. ——Wang Bo

I used to think that I was an astronaut. It took me a long time to realize that I was just a lonely dancer among the planets. ——Former Soviet astronaut

There are only two things in the world that are worthy of our deep admiration. One is the brilliant starry sky above our heads, and the other is the lofty moral law in our hearts. ——Kant

Man cannot even understand the universe, let alone command and control the universe. ——Montaigne