It is a sin directly against one's neighbour, since one man cannot over-abound in external riches, without another man lacking them.

Love must precede hatred, and nothing is hated save through being contrary to a suitable thing which is loved. And hence it is that every hatred is caused by love.

Now this relaxation of the mind from work consists on playful words or deeds. Therefore it becomes a wise and virtuous man to have recourse to such things at times.

Sloth is sluggishness of the mind which neglects to begin good...it is evil in its effect, if it so oppresses man as to draw him away entirely from good deeds.

In a false person, sacraments do not produce any effect.

A person is disposed to an act of choice by an angel ... in two ways. Sometimes, a man's understanding is enlightened by an angel to know what is good, but it is not instructed as to the reason why ... But sometimes he is instructed by angelic illumination, both that this act is good and as to the reason why it is good.

The soul is perfected by knowledge and virtue.