Andrey Konstantinovich Korsakov (Russian: Андрей Константинович Корсаков, Ukrainian: Андрій Костянтинович Корсаков; 30 October 1916 – 2007) was an eminent Russian and Ukrainian linguist and language philosopher who specialised in the grammar of the English language and is considered a father of Grammar School in Ukraine. Having organised the Chair of English Grammar at Odessa National Mechnikov University in 1963, he was at the head of it for the following 30 years. Within this period, as a scientific adviser, Korsakov supervised over 30 candidate theses, thus influencing the linguistic minds throughout the USSR. Professor Korsakov was one of the first to give philosophic interpretation of grammatical phenomena. The basis of his linguistic school makes up philosophic understanding conceiva