“There are some frauds so well conducted that it would be stupidity not to be deceived by them.”
“Some ideas are so stupid that only intellectuals believe them.”
“All men are frauds. The only difference between them is that some admit it. I myself deny it.”
“Few people have the wisdom to prefer the criticism that would do them good, to the praise that deceives them.”
“Many have made a trade of delusions and false miracles, deceiving the stupid multitudes.”
“You didn't strike me as stupid, but I guess first impressions are deceiving.”