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.
Unrestrained appreciation of our own worth
Immoderate desire for earthly goods
Hankering for impure pleasures
Inordinate desire for revenge
Unrestrained use of food and drink
Sorrow over another's good fortune
Laxity in keeping the Faith and the practice of virtue
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."