He Quotes (page 84)
He was an awkward mixture of strong moral impulse and restless aesthetic curiosity, and yet he would have made a most ineffective reformer and a very indifferent artist. It seemed to him that the glow of happiness must ne found either in action, of some immensely solid kind, on behalf of an idea, or in producing a masterpiece in one of the arts.
Henry James
...he was by no means expansive, and talked little indeed, but not from shyness or a sullen unsociability; quite the contrary, from something different, from a sort of inner preoccupation entirely personal and unconcerned with other people, but so important to him that he seemed, as it were, to forget other on account of it.
Fyodor Dostoevsky