"Give us this day our daily bread," by "this day" we mean "at this time," when we either ask for that sufficiency, signifying the whole of our need under the name of bread, which is the outstanding part of it, or for the sacrament of the faithful, which is necessary at this time for attaining not so much this temporal as that eternal happiness.
Saint AugustineEveryone who observes himself doubting observes a truth, and about that which he observes he is certain; therefore he is certain about a truth. Everyone therefore who doubts whether truth exists has in himself a truth on which not to doubt.... Hence one who can doubt at all ought not to doubt the existence of truth.
Saint AugustineEvery day my conscience makes confession relying on the hope of Your mercy as more to be trusted than its own innocence.
Saint Augustine