Nor should you consider it sufficient to renounce earthly pleasures through chastity and to submit in generous obedience to your superiors; to these you must also unite daily a detachment of your hearts from riches and from the things of earth. Reverently take as your models those great saints of ancient and modern times who joined this essential detachment from material goods to a profound trust in Divine Providence and a most ardent priestly zeal; as a result, they produced works that are truly marvelous, confiding solely in God who, assuredly, is never found wanting in our needs. Even priests who do not make a profession of poverty by a special vow, must always be guided by the love of this virtue, a love that ought to show itself in the simplicity and modesty of their manner of life, in their living quarters, and in their generosity to the poor. Let them especially refrain from those economic enterprises which would impede the fulfillment of their pastoral duties, and lessen the respect which is due to them from the faithful. Since it is the office of the priest to spend every effort to obtain the salvation of souls, he must apply to himself those words of St. Paul, "I do not seek yours, but you". (Papal Writings, Menti Nostrae, 23 September 1960).