A well-formed conscience is strengthened by virtue. The Compendium of the catechism of the Catholic Church defines virtue as “a habitual and firm disposition to do the good” (#377). We are shaped by the decisions we make and when we habitually choose what is good, we grow in the likeness of God. The Church distinguishes two types of virtue - human and theological. Human virtues strengthen us to control our desires and to guide our conduct according to reason and faith. We acquire them by repeatedly doing what is good. God’s grace purifies and elevates human virtues. They are grouped under the four cardinal virtues on which the entire moral life is hinged. These include “Prudence” which strengthens our reason so that we may discern not only the good to be done in a particular situation but also the best way to do it. “Justice” strengthens the will so that we will give to others and to God what is their due. “Fortitude” makes us firm in choosing the good, even when it is difficult or costly to do so. “Temperance” helps us to achieve self-mastery over our desires for pleasure and the use of this world’s goods. The theological virtues – Faith, Hope and Charity are from God and direct us to God. Unlike human virtues they are not acquired by practice but are infused in us through the Holy Spirit. These grow through prayer and through the Church’s sacramental life. They strengthen our relationship with the Trinity and help us to follow Christ by living the laws of love.