"The mathematical life of a mathematician is short. Work rarely improves after the age of twenty-five or thirty. If little has been accomplished by then, little will ever be accomplished."

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Quite often I have been faced with people who were praised and admired for their talents and their achievements... According to prevailing attitudes, these people-the pride and joy of their parents-should have had a strong and stable sense of self-assurance. But the case is exactly the opposite... Whenever they suddenly get the feeling they have failed to live up to some ideal image or have not measured up to some standard, then they are plagued by anxiety or deep feelings of guilt and shame. What are the reasons for such disturbances in these competent, accomplished people?

— Alice Miller