Albert Einstein indeed expressed great admiration for the Russian writer Fyodor Dostoevsky and acknowledged the impact his works had on him. However, the claim that Einstein specifically stated he learned more from Dostoevsky than any other person, including scientists, is not well-documented, and there is no definitive evidence to support it.
While Einstein did mention Dostoevsky on several occasions, he did not provide detailed insights into what he learned from him. Einstein was known to appreciate Dostoevsky's exploration of complex human psychology, moral dilemmas, and existential questions in his novels.
Regarding "The Brothers Karamazov," there is no direct evidence that Einstein referred to this particular novel in his writings or speeches. However, it is plausible that Einstein might have read and appreciated "The Brothers Karamazov" given its status as a literary masterpiece and its themes of ethics, religion, and the nature of humanity. The novel's philosophical and psychological depth could align with Einstein's interests and his exploration of profound questions about the universe and human existence.
Overall, while Einstein's admiration for Dostoevsky is well-documented, the specific details of what he learned from the author and any references to "The Brothers Karamazov" remain less clear and require further substantiation.