Поставить в косвенную речь. albert einstein liked the film with charlie chaplin. once he wrote a letter to chaplin: «everybody in the world understands your film "golden fever" ("золотая лихорадка"). you will become a great man by all means.» chaplin's answer was: «i like you even more. nobody in the world understands your "theory of relativity" and you have already become a great man.»
Chaplin answered that he liked him (Einstein) even more and added that nobody in the world understood his( Einstein's) "Theory of Relativity" and he( Einstein) had already become a great man.