"The Passionate Friends" by H. G. Wells is a novel published in 1913. It follows Stephen Stratton through a lifetime shaped by his forbidden love for Lady Mary Christian, a woman married to a wealthy financier. Their relationship unfolds across continents—from England to South Africa, through Asia and the Alps—as Stephen develops ambitious ideas about humanity's future. The novel explores love, duty, and social constraints while introducing Wells's vision of individuals working toward a transformed world.
Wikipedia page about this book: en.wikipedia.org/wiki/The_Passionate_Friends:_A_Novel