Cheap

"Words are cheap. The biggest thing you can say is elephant."

"The happiness of credulity is a cheap and dangerous quality of happiness, and by no means a necessity of life."

"There is nothing cheaper than an opinion."

"Freedom has cost too much blood and agony to be relinquished at the cheap price of rhetoric."

"Never buy a thing you do not want, because it is cheap, it will be dear to you."

"That man is the richest whose pleasures are the cheapest."