It is not I who am strong, it is reason, it is truth. - Émile Zola

He knew that, from now on, every day would be alike, that they would all bring the same sufferings. And he saw the weeks, the months, the years that awaited him, gloomy and implacable, coming one after the other, falling on him and suffocating him bit by bit. When the future is without hope, the present takes on a vile, bitter taste.

Oh, that's typical of you modern young men; you've nibbled at science and it's made you ill, because you've not been able to satisfy that old craving for the absolute that you absorbed in your nurseries. You'd like science to give you all the answers at one go, whereas we're only just beginning to understand it, and it'll probably never be anything but an eternal quest. And so you repudiate science, you fall back on religion, and religion won't have you any more. Then you relapse into pessimism...Yes, it's the disease of our age, of the end of the century: you're all inverted Werthers.

Sin ought to be something exquisite, my dear boy.