Resurrection by Leo Tolstoy

When Nekhlúdoff knew Selenín as a student, he was a good son, a true friend, and for his years an educated man of the world, with much tact; elegant, handsome, and at the same time truthful and honest. He learned well, without much exertion and with no pedantry, receiving gold medals for his essays. He considered the service of mankind, not only in words but in acts, to be the aim of his young life. He saw no other way of being useful to humanity than by serving the State. Therefore, as soon as he had completed his studies, he systematically examined all the activities to which he might devote his life, and decided to enter the Second Department of the Chancellerie, where the laws are drawn up, and he did so. But, in spite of the most scrupulous and exact discharge of the duties demanded of him, this service gave no satisfaction to his desire of being useful, nor could he awake in himself the consciousness that he was doing "the right thing."

This dissatisfaction was so much increased by the friction with his very small-minded and vain fellow officials that he left the Chancellerie and entered the Senate. It was better there, but the same dissatisfaction still pursued him; he felt it to be very different from what he had expected, and from what ought to be.