"The Church is One"  author  Alexei Khomiakov (1804--1860)

Aleksey Stepanovich Khomyakov (Алексей Степанович Хомяков) (May 1, 1804, Moscow – September 23/25, 1860) was a Russian religious poet who co-founded the Slavophile movement along with Ivan Kireevsky, and became one of its most distinguished theoreticians.Khomyakov's whole life was centered on Moscow. He viewed this "thousand-domed city" as an epitome of the Russian way of life. Equally successful as a landlord and conversatialist, he published but little during his lifetime. His writings, printed posthumously by his friends and disciples, exerted profound influence on the Russian Orthodox Church and Russian lay philosophers, such as Fyodor Dostoyevsky, Konstantin Pobedonostsev, and Vladimir Solovyov.