“Joy was not the raw material of humor . . . The dark source was sorrow.”
“The secret source of humor is not joy but sorrow; there is no humor in heaven.”
“Everything human is pathetic. The secret source of humor itself is not joy, but sorrow. There is no humor in Heaven.”
“The source of all humor is not laughter, but sorrow.”
“The most important thing in industry is the person who does the industry, which is the worker…. Labor is the only source of wealth. There is no other source, except land, the raw material….Every bit of capital that exists was made by labor, just as everything that is consumed is.”
“For there to be light, there must be darkness. For there to be joy, there must be sorrow. For there to be beauty, there must be the grotesque.”