Quote by Upton Sinclair

"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."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."