Quick Reference
Seven Gifts of the Holy Spirit
Aquinas says the first four of these gifts (wisdom, understanding, knowledge, and
counsel) direct the intellect, while the other three gifts (fortitude, piety, and fear
of the Lord) direct the will toward God.

From http://en.wikipedia.org/wiki/Seven_gifts_of_the_Holy_Spirit
Wisdom
 The gift of wisdom perfects a person's speculative reason in
matters of judgment about the truth, Aquinas writes.
Knowledge
 The gift of knowledge perfects a person's practical reason in
matters of judgment about the truth, Aquinas writes.
Counsel
 Also called "Right Judgment." The gift of counsel perfects a
person's practical reason in the apprehension of truth and allows
the person to respond prudently, "moved through the research of
reason," Aquinas writes.
Fortitude
 Also called "Courage." The gift of fortitude allows people the
"firmness of mind [that] is required both in doing good and in
enduring evil, especially with regard to goods or evils that are
difficult," Aquinas writes.
Understanding
 Also called "Common Sense." The gift of understanding perfects a
person's speculative reason in the apprehension of truth. It is the
gift "whereby self-evident principles are known," Aquinas writes.
Piety
 Piety is the gift "whereby, at the Holy Spirit's instigation, we pay
worship and duty to God as our Father," Aquinas writes.
Fear of the Lord
 Also called "Wonder and Awe in God." This gift is described by
Aquinas as a fear of separating oneself from God. He describes
the gift as a "filial fear," like a child's fear of offending his
father, rather than a "servile fear," that is, a fear of punishment.
Here are the names of the seven gifts, as given in the
Catechism of the Catholic Church, along with a description
of each gift, as defined by St. Thomas Aquinas in the
Summa Theologica: