Trust the past to the mercy of God, the present to His love, and the future to His providence.
Saint AugustineThough he avoided outright endorsement of the view, fifth-century Church Father Saint Augustine was clearly familiar with the theory of the spherical earth: "They [those who believe that "there are men on the other side of the earth"] fail to observe that even if the world is held to be global or rounded in shape, or if some process of reasoning should prove this to be the case, it would still not necessarily follow that the land on the opposite side is not covered by masses of water."
Saint AugustineBaptism does not profit a man outside unity with the Church ... For many heretics also possess this Sacrament but not the fruits of salvation ... The benefits which flow from Baptism are necessarily fruits which belong to the true Church alone. Children Baptized in other communions cease to be members of the Church when, after reaching the age of reason, they make formal profession of heresy, as, for example, by receiving communion in a non-Catholic Church.
Saint AugustineWhat is more insane than to be partakers of the Sacraments of the Lord and not partakers of the words of the Lord? These men truly have to say: "In Thy Name we have eaten and drunk," and they will have to hear: "I do not know you!" (Luke 13:26-27). They eat and drink His Body and Blood in the Sacrament and do not recognize in the Gospel His members spread over the whole world, and for this reason they are not numbered among them at the Judgment.
Saint Augustine