If I am given a formula, and I am ignorant of its meaning, it cannot teach me anything, but if I already know it what does the formula teach me?

If I am given a formula, and I am ignorant of its meaning, it cannot teach me anything, but if I already know it what does the formula teach me?

The verdict of the world is conclusive. [Lat., Securus judicat orbis terrarum.]

The spiritual virtue of a sacrament is like light; although it passes among the impure, it is not polluted. [Lat., Spiritalis enim virtus sacramenti ita est ut lux: etsi per immundos transeat, non inquinatur.]

We make a ladder for ourselves of our vices, if we trample those same vices underfoot. [Lat., De vitiis nostris scalam nobis facimus, si vitia ipsa calcamus.]

He fashioned hell for the inquisitive. [Lat., Curiosis fabricavit inferos.]