If you think education is expensive, try ignorance.

Robert Orben (1927-2023) American comedy writer, magician, speechwriter

(Attributed (1974))

Frequently attributed to Ann Landers, who used it in her column, but she herself cited Derek Bok (who then wrote her to disavow it being his). Also attributed to Andy McIntyre.

Further discussion of this quotation's origins:

• If You Think Education Is Expensive, Try Ignorance – Quote Investigator®.
• "If you think education is expensive, try….