The suffering and calamity are, moreover, exceptional. They befall a conspicuous person. They are themselves of some striking kind. They are also, as a rule, unexpected, and contrasted with previous happiness or glory. A tale, for example, of a man slowly worn to death by disease, poverty, little cares, sordid vices, petty persecutions, however piteous or dreadful it might be, would not be tragic in the Shakespearean sense.
He did not know that the new life would not be given him for nothing, that he would have to pay dearly for it, that it would cost him great striving, great suffering. But that is the beginning of a new story -- the story of the gradual renewal of a man, the story of his gradual regeneration, of his passing from one world into another, of his initiation into a new unknown life. That might be the subject of a new story, but our present story is ended.
The saddest thing in life and the hardest to live through, is the knowledge that there is someone you love very much whom you cannot save from suffering.
Most successes are unhappy. That's why they are successes - they have to reassure themselves about themselves by achieving something that the world will notice.