Marguerite Yourcenar said this quote

“ At that period I paid as constant attention to the greater securing of my happiness, to enjoying and judging it, too, as I had always done for the smallest details of my acts; and what is the act of love, itself, if not a moment of passionate attention on the part of the body? Every bliss achieved is a masterpiece; the slightest error turns it awry, and it alters with one touch of doubt; any heaviness detracts from its charm, the least stupidity renders it dull. My own felicity is in no way responsible for those of my imprudences which shattered it later on; in so far as I have acted in harmony with it I have been wise. I think still that someone wiser than I might well have remained happy till his death. ”