Quote by Upton Sinclair
"If you wish to change the world, you must first understand it."
"If you wish to change the world, you must first understand it."
"It is difficult to get a man to understand something, when his salary depends on his not understanding it."
"The American system of ours gives each and every one of us a great opportunity."
"There is one thing that the American people always rise up and do--when they get ready."
"I am nothing in this world but a writing machine."