need quotation

[jdl22]

Tomorrow I'm giving a talk for a research requirement in my grad program. I'm looking for OOT to give me a good quotation to say at the beginning or at least put on a slide.

My research is about the situation where a company or person only give out the positive information about their product and withhold negative information. Basically anything about covering up information and people being fooled by this would be good.

Following the rules, here's a pic of Paz Vega: