Avoid inquisitive persons, for they are sure to be gossips, their ears are open to hear, but they will not keep what is entrusted to them.
— Horace

That religious earnestness forever tends toward fright and hence towards brittleness and inquisition is clear enough in mythology and history.
Thomas Howard inquisition quote

He fashioned hell for the inquisitive.
— Augustine of Hippo

I am struck by the way people behave on the Tube. They look at each other beadily and inquisitively, and something goes on in their thoughts which must be equivalent to the way dogs and other animals, when they meet, sniff each other's arses and nuzzle each other's fur.
— Graham Swift

There are innumerable questions to which the inquisitive mind can in this state receive no answer: Why do you and I exist? Why was this world created? Since it was to be created, why was it not created sooner?
— inquisition quotation by Samuel Johnson