A man has free choice to the extent that he is rational.

One day when Thomas Aquinas was preaching to the local populace on the love of God, he saw an old woman listening attentively to his every word. And inspired by her eagerness to learn more about her God whom she loved so dearly, he said to the people: It is better to be this unlearned woman, loving God with all her heart, than the most learned theologian lacking love.

A man does not always choose what his guardian angel intends.

Evil denotes the lack of good. Not every absence of good is an evil, for absence may be taken either in a purely negative or in aprivative sense. Mere negation does not display the character of evil, otherwise nonexistents would be evil and moreover, a thing would be evil for not possessing the goodness of something else, which would mean that man is bad for not having the strength of a lion or the speed of a wild goat. But what is evil is privation; in this sense blindness means the privation of sight.

He that obstinately denieth the truth before men upon earth, wilfully refuseth his soul's health in heaven.

Man should not consider his material possession his own, but as common to all, so as to share them without hesitation when others are in need.

So, to detract from the perfection of creatures is to detract from the perfection of divine power.