“I don't know the key to success, but the key to failure is trying to please everybody.”
Cite this quote
APA
“I don't know the key to success, but the key to failure is trying to please everybody.” [Quotation attributed to Bill Cosby]. (n.d.). Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/38872-i-dont-know-the-key-to-success-but/
MLA
“I don't know the key to success, but the key to failure is trying to please everybody.” Attributed to Bill Cosby. Famous Quotations Network, https://www.famous-quotations.com/quotes/38872-i-dont-know-the-key-to-success-but/. Accessed 24 Oct. 2026.
Chicago
“I don't know the key to success, but the key to failure is trying to please everybody.” Attributed to Bill Cosby. Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/38872-i-dont-know-the-key-to-success-but/.