Robert A. Heinlein – Stranger in a Strange Land

Plot – Mike Smith is an orphan who was picked up and raised by the Martians as their own child. Having come to his native Earth for the first time, he does not feel at home. The hero does not like the rudeness and ignorance of people. Compared to the fragile and delicate inhabitants of Mars, they appear to be savages.

Stranger in a Strange Land by Robert A. Heinlein.