“It's what's inthat makes you happy or unhappy.”

“He knew that there was a difference between something that makes you happy and something that
doesn’t make you unhappy. The trick was convincing yourself these were one and the same.”

“We must spoil our women, boy. A happy woman makes a happy home. An unhappy one makes us drink.”

“You are unhappy because you believe in such a thing as happy.”

“As you live out your desolation, you can be either unhappy or happy. Having that choice is what constitutes your freedom.”

“They've got no idea what happiness is, they don't know that without this love there is no happiness or unhappiness for us--there is no life.”

“Simply put, you believer that things or people make you unhappy, but this is not accurate. You make yourself unhappy.”

“If you aren't unhappy sometimes you don't know how to be happy.”

““Is he then an unhappy man?”
Poirot said:
“So unhappy that he has forgotten what happiness means. So unhappy that he does not know he is unhappy.”
The nun said softly:
“Ah, a rich man…””

“There is, after all, a kind of happiness in unhappiness, if it's the right unhappiness.”