reasoning faculties

References in classic literature ?
You try to think of something to say, but find, to your horror, that your reasoning faculties have left you.
It was plain that Dian was ambitious, and that her ambition had not dulled her reasoning faculties.
I noticed during the period of this new persecution that the beasts appeared only when our backs were turned; we never saw one really materialize from thin air, nor did I for an instant sufficiently lose my excellent reasoning faculties to be once deluded into the belief that the beasts came into the room other than through some concealed and well-contrived doorway.
To see land and water curving upward in the distance until it seemed to stand on edge where it melted into the distant sky, and to feel that seas and mountains hung suspended directly above one's head required such a complete reversal of the perceptive and reasoning faculties as almost to stupefy one.
His little knowledge and lesser reasoning faculties suggested no thought of a doorway.
Since it is people that make things, I believe that it is extremely important to develop individuals' creative and reasoning faculties.
You may possess knowledge, sound judgment, good reasoning faculties, but no one will know it until you discover how to put your heart into thought and action.