God loves the simple, and converses with them willingly, and communicates to them the understanding of His truths, because He disposes of these at his pleasure. He does not deal thus with lofty and subtle spirits. -St. Francis de Sales
St. Vincent de Paul was of the same opinion, the truth of which, he said, experience daily confirms; for it is but too clear that the spirit of religion is not ordinarily to be found so much among the wise and prudent of the world, as among the poor and simple, who are enriched by God with a living and practical faith, which makes them believe and appreciate the words of eternal life. So they are usually seen to suffer their diseases, their poverty, and all their trials, with more patience and resignation than others.
True simplicity is like that of children, who think, speak, and act candidly and without craftiness. -St. Francis de Sales
St. Vincent de Paul said, one day, that from the time he had given himself to the service of God, he had never done anything which he would not have been willing to do in the public squares; for he performed every action with a vivid recollection, of the presence of God, whom he feared more than men.
God is a Being most simple in His essence, admitting no composition whatever. If, then, we desire to render ourselves as much like Him as possible, we should endeavor to be by virtue what He is by nature; that is, we ought to have a simple heart, a simple soul, a simple intention, a simple mode of action. -St. Vincent de Paul
Text from A Year With the Saints (New York: P.J. Kenedy & Sons, 1891).