"The Eucharist is also the sacrifice of praise by which the Church sings the glory of God in the name of all creation. This sacrifice of praise is possible only through Christ: he unites the faithful to his person, to his praise, and to his intercession, so that the sacrifice of praise to the Father [...]
"We must therefore consider the Eucharist as: thanksgiving and praise to the Father; the sacrificial memorial of Christ and his Body; the presence of Christ by the power of his word and of his Spirit." Source: Catechism of the Catholic Church #1358
"The presentation of the offerings (the Offertory). Then, sometimes in procession, the bread and wine are brought to the altar; they will be offered by the priest in the name of Christ in the Eucharistic sacrifice in which they will become his body and blood. It is the very action of Christ at the Last [...]
"Some there are who wish to serve Our Lord only on condition of being better treated than they were in the world. Oh, how many there are who demand of religion only its advantages, who enter it only to make sure of their bread, to find in it a resource, a commodious shelter! Religious nobodies! [...]
"The Church is able to celebrate and adore the mystery of Christ present in the Eucharist precisely because Christ first gave himself to her in the sacrifice of the Cross." Source: Pope Benedict XVI, SACRAMENTUM CARITATIS (Sacrament of Charity), 2/22/2007
"Where there is genuine virtue, there must be sacrifice as well; one’s whole life must be a sacrifice. It is only by means of sacrifice that souls can become useful." Source: St. Faustina, Diary: Divine Mercy in My Soul
"The inexhaustible richness of this sacrament is expressed in the different names we give it. Each name evokes certain aspects of it. It is called: The Holy Sacrifice, because it makes present the one sacrifice of Christ the Savior and includes the Church's offering. the terms holy sacrifice of the Mass, 'sacrifice of praise,' spiritual [...]
"When there is question of working on one's self, a man experiences difficulty, he soon finds that he always does enough. But he will greatly devote himself for others, will sacrifice himself for their advancement, though he may be lax when there is question of self. In the same measure as he rushes forth to [...]
"This sacrament has a threefold significance. One with regard to the past… it is commemorative of our Lord's Passion, which was a true sacrifice… and in this respect it is called a 'Sacrifice.' With regard to the present… that of Ecclesiastical unity, in which men are aggregated through this Sacrament; and in this respect it [...]
"Baptism is the initiation to the Christian life, and corresponds in the biological order to the beginning of life. But the birth to Divine Life comes only through a death; that is to say, an immersion under water which mystically symbolizes dying and being buried with Christ. The Eucharist is a sacrifice; it also incorporates [...]