Luke's version can be found in chapter six, verses twenty-one through twenty five and, unlike Matthew's more famous record, also includes a list of "woes". Matthew's version is found in chapter five, verses three through twelve and is as follows:
Blessed are the poor in spirit: for theirs is the kingdom of heaven.
Blessed are they that mourn: for they shall be comforted.
Blessed are the meek: for they shall inherit the earth.
Blessed are they that hunger and thirst after righteousness: for they shall be filled.
Blessed are the merciful: for they shall obtain mercy.
Blessed are the pure in heart: for they shall see God.
Blessed are the peacemakers: for they shall be called sons of God.
Blessed are they that have been persecuted for righteousness' sake: for theirs is the kingdom of heaven.
Blessed are ye when [men] shall reproach you, and persecute you, and say all manner of evil against you falsely, for my sake.
Rejoice, and be exceeding glad: for great is your reward in heaven.
Source: American Standard Version Bible, http://www.bible.org/public/readme.htm