Rarely affirm, seldom deny, always distinguish.

If a man deliberately abstains from wine to such an extent that he does serious harm to his nature, he will not be free from blame.

One aspect of neighbourly love is that we must not merely will our neighbours good, but actually work to bring it about.

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.

It is altogether unlawful to kill oneself... Wherefore suicide is contrary to the inclination of nature, and to charity whereby every man should love himself... Life is God's gift to man, and is subject to His power, Who kills and makes to live. Hence whoever takes his own life, sins against God... for it belongs to God alone to pronounce sentence of death and life.

If you can live amid injustice without anger, you are immoral as well as unjust.

If all the sins of the flesh are worthy of condemnation because by them man allows himself to be dominated by that which he has of the animal nature, much more deserving of condemnation are the sins against nature by which man degrades his own animal nature.