“ANOTHER road, which our Leader has pointed out to us is this: ‘Blessed are the poor in spirit, for theirs is the kingdom of heaven.’ ... ‘Upon this path the Apostles also entered, though it would not have been difficult for them to have enriched themselves, since they were renowned for signs and wonders, and spoke the languages of many nations, and were admired by the whole world for their wisdom. But they who had once spoke the words, Behold we have left all things, and have followed thee;’ who had tasted how sweet it was to be free from the love of money, having food and wherewith to be covered, they considered virtue and the justice of God to be their great gain. On this road also walked, not only monks and hermits, but even kings and pontiffs who have thus arrived at the kingdom of heaven. ”
St. Robert Bellarmine, “The Eternal Happiness of the Saints”, Ch. VII