I first learned of Henry Boettinger's 1969 book, Moving Mountains , from Cliff Atkinson's excellent presentation blog . Here , Cliff uses the quote that I placed in the two slides above. Cliff used this quote in his web seminar while showing a good visual which evoked the feelings of "high voltage" and "connection" (or "conversation"). As Cliff mentions here , in the actual web seminar, he used the quote sans any text in the visual. This worked fine, but usually (not always) it is better to have the quote appear on screen. However, as Cliff points out, using "...a range of approaches in a live presentation environment" is best.