“Before anything else, preparation is the key to success.”
As quoted in Sophia's Fire (2005) by Sango Mbella, p. 133.
Help us to complete the source, original and additional information
Alexander Graham Bell 20
scientist and inventor known for his work on the telephone 1847–1922Related quotes

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

“I was kind of doing this before I did anything else.”
QRO Magazine interview (2007)
Context: The first thing I did when I picked up any instrument, when I was five years old, was write a song. It's kind of funny; I thought about it, statements that it's a "solo effort" — it's kind of like, "Oh, well I've been doing this since I was five." I was kind of doing this before I did anything else.

“The key to success is failure”
“I think mental preparation is the key to succeeding”
Quoted on The Sydney Morning Herald, "Arjun Nair is a name to remember, says Cricket Australia's Greg Chappell" http://www.smh.com.au/sport/cricket/arjun-nair-is-a-name-to-remember-says-cricket-australias-greg-chappell-20160129-gmhk9z.html, January 30, 2016.
Context: So many thought processes. When I'm not playing or training I'm thinking 'what more can I do to improve'. I'll train most days, I'm very hungry for wickets and runs and that's been the main key to what I've done. I think mental preparation is the key to succeeding.

“Let me hold on to this the way it was, before I knew anything else.”
Source: How They Met, and Other Stories