“Making a presentation is a moral act as well as an intellectual activity. The use of corrupt manipulations and blatant rhetorical ploys in a report or presentation - outright lying, flag-waving, personal attacks, setting up phony alternatives, misdirection, jargon-mongering, evading key issues, feigning disinterested objectivity, willfully misunderstanding the other point of view - suggests that the presenter lacks both credibility and evidence. To maintain a standard of quality, relevance, and integrity for evidence, consumers of presentations should insist that the presenters be held intellectually and ethically responsible for what they show and tell. Thus consuming a presentation is also an intellectual and moral activity.”
- Edward Tufte, Beautiful Evidence. 2006.