Fyodor Mikhailovitch Dostoevsky was a Russian writer and essayist, notably known for his novels Crime and Punishment and The Brothers Karamazov.
Dostoyevsky's literary output explores human psychology in the troubled political, social and spiritual context of 19th-century Russian society. Considered by many as a founder or precursor of 20th-century existentialism, his Notes from Underground (1864), written in the embittered voice of the anonymous "underground man", was called the "best overture for existentialism ever written" by Walter Kaufmann. A prominent figure in world literature, Dostoyevsky is often acknowledged by critics as one of the greatest psychologists in world literature. Freud said his book The Brothers Karamazov contained all the psychology.