"Impatience can cause wise people to do foolish things."

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You think me foolish to call instruction a torment, but if you had been as much used as myself to hear poor little children first learning their letters and then learning to spell, if you had ever seen how stupid they can be for a whole morning together, and how tired my poor mother is at the end of it, as I am in the habit of seeing almost every day of my life at home, you would allow that to torment and to instruct might sometimes be used as synonymous words.

— Jane Austen