Hai cercato la traduzione di koznichev da Spagnolo a Inglese

pero koznichev no se hallaba solo.
but his brother was not alone.

aunque apreciaba mucho a su hermano de madre, célebre escritor, le resultaba intolerable que no le consideraran a él como constantino levin, sino como hermano del ilustre koznichev.
though levin had great respect for his step-brother, an author known throughout russia, he hated to be regarded not as constantine levin but as a brother of the famous koznyshev.

llegó a moscú en el tren de la mañana y en seguida se dirigió a casa de koznichev, su hermano mayor por parte de madre. después de mudarse de ropa, entró en el despacho de su hermano dispuesto a exponerle los motivos de su viaje y pedirle consejo.
having reached moscow by a morning train, levin went to stay at the house of his half-brother koznyshev, who was older than he, and after changing his clothes entered his brother's study, intending to tell him why he had come and to ask his advice.

el profesor sostenía una ardiente polémica con los materialistas, y koznichev, que la seguía con interés, después de leer el último artículo del profesor, le escribió una carta exponiéndole sus objeciones y censurándole las excesivas concesiones que hacía al materialismo. el polemista se puso en seguida en camino para discutir la cuestión.
the professor was engaged in a fierce polemic against the materialists, and sergius koznyshev, who followed this polemic with interest, on reading the professor's last article had written to him reproaching him with having conceded too much to the materialists; and the professor had come at once to talk the matter over.