>>655926
Without grace man of himself can know truth.
But without grace men do nothing good when they either think or wish or love or act.
Without grace man, by his natural powers alone, can love God more than himself and above all things.
But without grace man cannot fulfil the Divine commandments.
Man cannot merit everlasting life without grace
Man cannot prepare himself for grace without the help of grace.
Man cannot rise from sin without the help of grace.
Without grace man cannot avoid sin.
Whoever has already obtained grace, cannot by himself and without further help of grace, do good and avoid sin.
Man, even when possessed of grace, needs perseverance to be given to him by God.
http://www.newadvent.org/summa/2109.htm