We (1921) by Yevgeny Zamyatin

Written after the Russian Revolution and banned in his own country, the novel foreshadows and influences writers like George Orwell and  Aldois Huxely.

The story  is about 5-503, a mathematician in a "One State" world. Everything is made of glass. The Benefactor rules over all Everything is fine until 1-330, a female makes him think of possibilities not calculated.