SIN

THE SEVEN DEADLY SINS & THEIR CONTRARY VIRTUES

We should not be satisfied merely to keep the commandments of God, but should always be ready to do good deeds, even when they are not commanded. The commandments of God state the minimum requirements for salvation. They should be kept not merely according to the letter, but also according to the spirit, which obliges us to strive for greater perfection.

Actual sin is any willful thought, desire, word, action or ommission forbidden by the law of God.

Deadly Sin	Definition	Contrary Virtue
Pride	Unrestrained appreciation of our own worth	Humility
Greed	Immoderate desire for earthly goods	Liberality
Lust	Hankering for impure pleasures	Chastity
Anger	Inordinate desire for revenge	Meekness
Gluttony	Unrestrained use of food and drink	Temperance
Envy	Sorrow over another's good fortune	Brotherly Love
Sloth	Laxity in keeping the Faith and the practice of virtue	Diligence

Note:
The 7 Deadly Sins, also known as "The 7 Capital Sins," are those sins that give rise to other sins. They were first enumerated by Pope St. Gregory the Great in "Moralia in Job."

FOUR SINS CRYING TO HEAVEN FOR VENGEANCE

1.   Willful murder (including abortion)
2.   The sin of Sodom.
3.   Oppression of the poor.
4.   Defrauding laborers of their wages.

THE SIX SINS AGAINST THE HOLY SPIRIT

1.   Presumption of God's mercy.
2.   Despair.
3.   Impugning the known truth.
4.   Envy at another's spiritual good.
5.   Obstinacy in sin.
6.   Final impenitence.

NINE WAYS OF BEING ACCESSORY TO ANOTHER'S SIN

1.   By counsel.
2.   By command.
3.   By consent.
4.   By provocation.
5.   By praise or flattery.
6.   By concealment.
7.   By partaking.
8.   By silence.
9.   By defense of the ill done

3 CONDITIONS FOR MORTAL SIN
Grave matter
Full knowledge
Deliberate consent

Note:
From the Catechism of St. Pius X, "The Main Kinds of Sin,"

Question 9-10:
Q: What injury does mortal sin do the soul?
A: (1) Mortal sin deprives the soul of grace and of the friendship of God; (2) It makes it lose Heaven; (3) It deprives it of merits already acquired, and renders it incapable of acquiring new merits; (4) It makes it the slave of the devil; (5) It makes it deserve hell as well as the chastisements of this life.
Q: Besides grave matter, what is required to constitute a mortal sin?
A: To constitute a mortal sin, besides grave matter there is also required full consciousness of the gravity of the matter, along with the deliberate will to commit the sin.