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Such sins, even if they do not kill all grace in us, do harm, nevertheless; and though they are only venial in themselves, they make us apt, ready, and inclined to lose grace and to fall into mortal sin.

Vices are simply the errors which a man makes in his search after his own happiness. Unlike crimes, they imply no malice toward others, and no interference with their persons or property.

It will always be considered a praiseworthy undertaking to urge the most obstinate and incredulous to abide by the principles that impel men to live in society. There are, therefore, three distinct classes of vice and virtue: the religious, the natural, and the political. These three classes should never be in contradiction with one another.

A portion of mankind take pride in their vices and pursue their purpose; many more waver between doing what is right and complying with what is wrong.

Although the particular inclination of the homosexual person is not a sin, it is more or less strong tendency ordered to an intrinsic moral evil, and thus the inclination itself must be seen as an objective disorder.

Temptation coaxes us toward sin, and sin leads to sickness and death, and ultimately confinement in the realm of the evil one.

According to the Stoics, all vice was resolvable into folly: according to the Christian principle, it is all the effect of weakness.

We have a tendency to condemn people who are different from us, to define their sins as paramount and our own sinfulness as being insignificant.

It has been my experience that folks who have no vices have very few virtues.