Leo XIII,
The Great Encyclical Letters of Pope Leo XIII
(1903)
“ If we scrutinize more closely the particular acts We have above referred to, we shall discover that oftentimes they have more the appearance than the reality of virtue. But let us grant that these are real. If we do not wish to run in vain, if we do not wish to lose sight of the eternal blessedness to which God in His goodness has destined us, of what use are the natural virtues unless the gift and strength of divine grace be added? ”
