
Vladimir Sergeevič Solovʹëv
Vladimir Sergeyevich Solovyov was a Russian philosopher, theologian, poet, pamphleteer, and literary critic, who played a significant role in the development of Russian philosophy and poetry at the end of the 19th century and in the spiritual renaissance of the early 20th century.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

The Meaning of Love
1985
ISBN 9780940262188