For an idea that does not first seem insane, there is no hope.
[...] but just as formerly these pursuits and ideas had seemed petty and insignificant in comparison with the darkness that overshadowed all existence, so now they seemed as petty and insignificant in comparison with the brilliant sunshine in which the future was bathed. He went on with his work but now he felt that the centre of gravity of his attention had shifted, making him look at his work quite differently and with greater clarity. Formerly this work had been an escape from life: he used to feel that without it life would be too gloomy. Now he needed it so that life might not be too uniformly bright.