“A child gets sick with a chronic disease of unhappiness not from unhappy circumstances but from unhappy people around him. Unhappy people cannot raise happy children; it’s impossible.”

“Unhappiness. There are all kinds of unhappy people in the world. I suppose it would be no exaggeration to say that the world is composed entirely of unhappy people. But those people can fight their unhappiness with society fairly and squarly, and society for its part easily understands and sympathizes with such struggles. My unhappiness stemmed entirely from my own vices, and I had no way of fighting anybody.”

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

“It is better to be unhappy in love than unhappy in marriage, but some people manage to be both.”

“The world of the happy is quite different from the world of the unhappy.”

“I'm not unhappy," he said. "Only people with no purpose are unhappy. I've got a purpose.”

““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…””

“A little girl without a doll is almost as unhappy, and quite as impossible, as a woman without children."

from chapter VIII of Les Miserables”

“The happier people can be, the unhappier they are.”

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