George Alexander Stevens 
A Lecture On Heads 

Every single speaker, who, like me, attempts to entertain an audience, has not only the censure of that assembly to dread, but also every part of his own behaviour to fear. The smallest error of voice, judgment, or delivery, will be noted: ‘All that can be presumed upon in his favour is, a hope that he may meet with that indulgence which an English audience are so remarkable for, and that every exhibition stands so much in need of.’