"I will never use a substitute for butter. Margarine is one molecule away from eating plastic. If I'm going to eat that type of food, it's going to be the real deal."
"If the power to do hard work is not a skill, it's the best possible substitute for it."
"There is no substitute for accurate knowledge. Know yourself, know your business, know your men."
"Cynicism is the intellectual cripple's substitute for intelligence."
"There is no substitute for hard work."
"In truth, politeness is artificial good humor, it covers the natural want of it, and ends by rendering habitual a substitute nearly equivalent to the real virtue."
"The work of science is to substitute facts for appearances, and demonstrations for impressions."
"We need more of the Office Desk and less of the Show Window in politics. Let men in office substitute the midnight oil for the limelight."
"Rhetoric is a poor substitute for action, and we have trusted only to rhetoric. If we are really to be a great nation, we must not merely talk we must act big."
"It is art that makes life, makes interest, makes importance... and I know of no substitute whatever for the force and beauty of its process."