Who said “He's simply got the instinct for being unhappy highly developed.”?

“Suspicion of happiness is in our blood.”

“Happiness is not pleasure, it is victory.”

“Happiness is not a goal, it is a by-product.”

“To be happy we must not be too concerned with others.”

“Happiness makes up in height for what it lacks in length.”

“Poverty keeps together more homes than it breaks up.”

“The cook was a good cook, as cooks go; and as cooks go, she went.”

“Waldo is one of those people who would be enormously improved by death.”

“The sacrifices of friendship were beautiful in her eyes as long as she was not asked to make them.”

“We all know that Prime Ministers are wedded to the truth, but like other married couples they sometimes live apart.”

“You needn't tell me that a man who doesn't love oysters and asparagus and good wines has got a soul, or a stomach either. He's simply got the instinct for being unhappy highly developed.”