As quoted in Stack the Logs! : Building a Success Framework to Reach Your Dreams (2003) by Frank F. Lunn, p. 45
“Action is the foundational key to all success.”
Variant: Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
Source: https://www.google.com/books/edition/What_Is_E_Commerce/PkPhDwAAQBAJ
“The key to success is failure”
“Education is the foundation of success[…]”
Rich Dad Poor Dad: What the Rich Teach Their Kids About Money-That the Poor and the Middle Class Do Not!
“Forgiveness is the key to action and freedom.”
“I don't know the key to success, but the key to failure is trying to please everybody.”
Originally from Herbert Bayard Swope (1882-1958); often attributed to Cosby, he actually cites this as a sound advice he once read elsewhere, in "Dr. Bill Cosby" in Ebony, Vol. 32, No. 8 (June 1977), p. 136
Misattributed
