“These words show us that contentment is not a natural propensity of man. Weeds grow easily. Covetousness, discontent, and murmuring are as natural to man as thorns are to the soil. We do not need to sow thistles and brambles; they come up naturally enough, because they are indigenous to earth. And so we do not need to teach men to complain; they complain fast enough without any education.
But the precious things of the earth must be cultivated. In order to have wheat, we must plow and sow; if we want flowers, there must be the garden, and all the gardener’s care.
Now, contentment is one of the flowers of heaven, and if we would have it, it must be cultivated; it will not grow in us by nature. It is the new nature alone that can produce it, and even then we must be specially careful and watchful that we maintain and cultivate the grace that God has sown in us.”