
“If you can't explain it to a six year old, you don't understand it yourself.”
Variant: If you can't explain it to a six year old, you don't understand it yourself.
Writers at Work interview (1963)
“If you can't explain it to a six year old, you don't understand it yourself.”
Variant: If you can't explain it to a six year old, you don't understand it yourself.
Maxim quoted in a tribute to Cannon on his retirement, reported in The Sun, Baltimore, Maryland (March 4, 1923); Congressional Record (March 4, 1923), vol. 64, p. 5714.
"Dr Bill Cosby Speaks at the 50th Anniversary commemoration of the Brown vs Topeka Board of Education Supreme Court Decision," known as the "Pound Cake" speech (May 2004).
“If you can't explain it simply, you don't understand it well enough.”