Noun
how the other half lives (uncountable)
The comfortable, luxurious lifestyles of those who are very wealthy.
Half the world does not know how the other half lives. François Rabelais
Like many people, I was an ardent admirer of Theodore Roosevelt. ...He had recommended to the people Jacob Riis's book How the Other Half Lives. I had read it, and Theodore Roosevelt's inaugural address of 1905, and had straightaway felt that the pursuit of social justice would be my vocation. Frances Perkins
One half of the world does not know how the other half lives. German Proverb