I beseech Thee, my God, I would fain know, if so Thou willest, for what purpose my baptism was then deferred? was it for my good that the rein was laid loose, as it were, upon me, for me to sin? or was it not laid loose? If not, why does it still echo in our ears on all sides, "Let him alone, let him do as he will, for he is not yet baptised?" but as to bodily health, no one says, "Let him be worse wounded, for he is not yet healed." How much better then, had I been at once healed; and then, by my friends' diligence and my own, my soul's recovered health had been kept safe in Thy keeping who gavest it.
Saint AugustineOften a non-Christian knows something about the earth, the heavens, and the other parts of the world, about the motions and orbits of the stars and even their sizes and distances... and this knowledge he holds with certainty from reason and experience. It is thus offensive and disgraceful for an unbeliever to hear a Christian talk nonsense about such things, claiming that what he is saying is based in Scripture. We should do all that we can to avoid such an embarrassing situation, which people see as ignorance in the Christian and laugh to scorn.
Saint Augustine