Part 3, Section 1, Chapter 1, Article 8, SubSection 5
1866 Vices can be classified according to the virtues they oppose, or also be linked to the
capital sins which Christian experience has distinguished, following St. John Cassian and St. Gregory the Great. They are called "capital" because they engender other sins, other vices.
138 They are pride, avarice, envy, wrath, lust, gluttony, and sloth or acedia.
Gregory the Great, Moralia in Job 31, 45
The leader of the devil's army is pride whose progeny are the seven principal vices. While there are vices which attack us in an invisible warfare under the leadership of pride, some behave like officers and others like troops. For not all faults occupy the heart from the same quarter. But while the greater and less frequently-occurring faults can overcome a mind not on its guard, the lesser but more numerous faults pour in en mass. And once pride, the queen of vices, has fully conquered a heart, she soon hands it over to the seven principal vices, or to her generals. The army follows these generals for there is no doubt that persistence multitudes of vices follow them. We will better be able to demonstrate this if we enumerate these leaders and the army. Certainly the root of all evils is pride, of which Scripture says, "Pride is the origin of all sin" (Eccl. 10:15). The first of her progeny are certainly the seven principal vices which came forth from the virulent root, namely, vainglory, envy, anger, sloth, avarice, gluttony, lust. And because he grieved at our being held captive by pride's seven vices, our Redeemer wages a spiritual war of liberation for us, filled with a spirit of a sevenfold grace.
From the dictonary
Pride: An excessively high opinion of oneself; conceit.
Envy: A feeling of discontent and resentment aroused by and in conjunction with desire for the possessions or qualities of another.
Anger: A strong feeling of displeasure or hostility.
sloth: Aversion to work or exertion; laziness; indolence.
avarice: Immoderate desire for wealth; cupidity.
gluttony: Excess in eating or drinking.
lust: Intense or unrestrained sexual craving.