I can't make out, and that perplexes me.
"The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons"
Jacques Casanova de Seingalt
"Notwithstanding which," wrote John Andrews, "there seems to be ease, contentment, and perfect composure in the countenance of almost every person you meet in the streets, which conduct very much perplexes the Governor and others, our lords and masters, that they are greatly puzzled, and know not what to do or how to act, as they expected very different behaviour from us."
"The Siege of Boston"
Allen French
To say that the abrupt occurrence of the change of temperature constitutes a problem may sound forced and artificial; but if we are willing to extend the meaning of the word problem to whatever-no matter how slight and commonplace in character-perplexes and challenges the mind so that it makes belief at all uncertain, there is a genuine problem or question involved in this experience of sudden change.
"How We Think"
John Dewey