"Micromegas" by Voltaire is a philosophical science-fiction novel that tells about the meeting of an intelligent alien from the planet Sirius with a height of several kilometers and his friend, a resident of Saturn, only 6-7 times the height of his satellite. These unusual creatures explore the world and human nature, given their vast and microscopic structure. With the help of this unexpected encounter, the author reveals deep philosophical and moral questions, problems of social inequality and the nonsense of human wars. "Micromegas" is an important work that calls us to reconsider our world views and quest for knowledge by mocking human flaws and weaknesses.