Catechism of the Catholic Church §549 — excerpt
By freeing some individuals from the earthly evils of hunger, injustice, illness and death, Jesus performed messianic signs. Nevertheless he did not come to abolish all evils here below, but to free men from the gravest slavery, sin, which thwarts them in their vocation as God's sons and causes all forms of human bondage.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.