
“Be open minded, but not so open minded that your brains fall out.”
Swift, 30 December 2005,. "McGill University Featuring Pseudoscience" http://web.archive.org/web/20110108172522/http://www.randi.org/jr/200512/123005museum.html#i8
http://www.fortwayne.com/mld/journalgazette/living/17126222.htm April 24, 2007.
“Be open minded, but not so open minded that your brains fall out.”
“It pays to keep an open mind, but not so open your brains fall out.”
“If you're too open-minded; your brains will fall out.”
“Open your eyes, train your ears, use your head. If a mind you have, then use it while you can.”
Source: Hard-Boiled Wonderland and the End of the World
Reported in The Saturday Magazine (September 28, 1833), p. 118 https://books.google.com/books?id=jh_nAAAAMAAJ&pg=118.
Oh, the Places You'll Go! (1990)
Source: Oh, The Places You'll Go!