"[Sergéi] is fair-haired and good-looking; there is something weak and patient in his expression, and very gentle. His laugh is not infectious, but when he cries I can hardly refrain from crying too. Every one says he is like my eldest brother [Nikolái]. I am afraid to believe it. It is too good to be true. My brother's chief characteristic was neither egotism nor self-renunciation, but a strict mean between the two: he never sacrificed himself for any one else, and he always avoided, not only injuring others, but also interfering with them. He kept his happiness and his sufferings entirely to himself. Seryózha (Sergéi) is clever; he has a systematic mind and is sensitive to artistic impressions, does his lessons splendidly, is athletic and lively at games, but gauche and absent-minded. He lacks independent-mindedness; is a slave to his physical condition; according to whether he is well or unwell he is two quite different boys."
Sergei Tolstoy

January 1, 1970