
“Don't let us make imaginary evils, when you know we have so many real ones to encounter.”
Act I, Scene 1 http://books.google.com/books?id=sZloXETcr24C&q=%22Don't+let+us+make+imaginary+evils+when+you+know+we+have+so+many+real+ones+to+encounter%22&pg=PA21#v=onepage.
The Good-Natured Man (1768)