"Though these young men unhappily fail to understand that the sacrifice of life is, in many cases, the easiest of all sacrifices, and that to sacrifice, for instance, five or six years of their seething youth to hard and tedious study, if only to multiply tenfold their powers of serving the truth and the cause they have set before them as their goal such a sacrifice is utterly beyond the strength of many of them. The path Alyosha chose was a path going in the opposite direction, but he chose it with the same thirst for swift achievement. As soon as he reflected seriously he was convinced of the existence of God and immortality, and at once he instinctively said to himself: "I want to live for immortality, and I will accept no compromise." In the same way, if he had decided that God and immortality did not exist, he would at once have become an atheist and a socialist. For socialism is not merely the labour question, it is before all things the atheistic question, the question of the form taken by atheism to-day, the question of the tower of Babel built without God, not to mount to heaven from earth but to set up heaven on earth. Alyosha would have found it strange and impossible to go on living as before. It is written: "Give all that thou hast to the poor and follow Me, if thou wouldst be perfect.""
Book I, Chapter 5 (trans., Pevear & Volokhonsky )