Johann Arndt — German Theologian

Johann Arndt was a German Lutheran theologian who wrote several influential books of devotional Christianity. Although reflective of the period of Lutheran Orthodoxy, he is seen as a forerunner of pietism, a movement within Lutheranism that gained strength in the late 17th century... (wikipedia)

Yet, so far from laboring to know the forbidden tree of worldly pleasures and its various fruits, man gives himself up to a careless and thoughtless state of life, and yields to the lust of the flesh, not considering that this lust is really the forbidden tree.
It certainly is the duty of every true Christian, to esteem himself a stranger and pilgrim in this world; and as bound to use earthly blessings, not as means of satisfying lust or gratifying wantonness, but of supplying his absolute wants and necessities.
Whatever man uses without the fear of God, whatever he applies to the mere gratifying of his flesh, cannot fail to operate as a poison to the soul, however pleasant and salutary it may appear to be to the body.
Consider then, O man! whether there can be anything more wretched and poor, more naked and miserable, than man when he dies, if he be not clothed with Christ's righteousness, and enriched in his God.
In short, all things that please the natural man in this world, are, to a true Christian, only so many crosses and temptations, allurements of sin and snares of death, that continually exercise his virtue.