“Error is none the better for being common, nor truth the worse for having lain neglected”

“Where quality is the thing sought after, the thing of supreme quality is cheap, whatever the price one has to pay for it.”

“Economy is half the battle of life. It is not so hard to earn money as to spend it well.”

“If you have to ask how much it costs, you can't afford it.”

“The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have”

“Not just in commerce but in the world of ideas too our age is putting on a veritable clearance sale. Everything can be had so dirt cheap that one begins to wonder whether in the end anyone will want to make a bid”