Related:

• If you keep an open mind people will throw a lot of garbage in it.
• If you keep your mind sufficiently open, people will throw a lot of rubbish into it.
  -- William A. Orto...
• If you keep your mind sufficiently open, people will throw a lot of rubbish into it.
  -- William Orto...
• In making theories, always keep a window open so that you can throw one out if necessary.
  -- Bela Schick...
• Goodman: Now, who knows how the Skinners could have resolved this problem?
  [everyone puts their hands up] Without resorting to violence....
• Keep your mouth shut and people will think you stupid; Open it and you remove all doubt.
• Most people have a mind that's open by appointment only.