Quotation bias

Way back in school, I was taught to pepper any speech with quotes to lend weight to whatever I was speaking about, especially when it came to public speaking. Which essentially put paid to my career as a public speaker. I mean, if you start off with "As Shakespeare said, 'Neither a lender...', blink owlishly, swallow, and start again, 'Neither a...', look piteously at the audience and, then, find