"The theological beginner should concentrate on his study in its own right during his few years at the seminary or university, for these years will not return. It is no doubt unwise, if not dangerous, when, instead of such concentration, the beginner flings himself beforehand into all sorts of Christian activities and ruminates on them, or even stands with one foot already in an office of the Church, as is customary in certain countries.
Nevertheless, this admonition does not alter the fact that the service of God and the service of man are the meaning, horizon, and goal of theological work." - Karl Barth, Evangelical Theology, pp. 186-87.