“There is always someone out there getting better than you by training harder than you.”
Help us to complete the source, original and additional information
Pelé 48
Brazilian association football player 1940–2022
Related quotes

“A narcissist is someone better looking than you are.”
Quoted in "Vidal: 'I'm at the Top of a Very Tiny Heap,'" profile by Michiko Kakutani, The New York Times (12 March 1981), Late City Final Edition, Section C, Page 17, Column 1.
1980s
Eric Stanley on CBS News https://www.youtube.com/watch?v=ksYrWGivy5A
2011

She believed, rightly, that gives you purpose and helps you heal. So I always do my best to forgive and move forward.
On the lessons that her Dutch mother (who was interned in a Japanese internment camp during WWII) instilled in her in “Interview: Jane Seymour on finding love again at 64” https://www.scotsman.com/arts-and-culture/film-and-tv/interview-jane-seymour-on-finding-love-again-at-64-1-3911978 in The Scotsman (2015 Oct 10)

“Give what you have. To someone, it may be better than you dare to think.”
Source: Kavanagh: A Tale (1849), Chapter 30.

“There is no disappointment so numbing… as someone no better than you achieving more.”

As quoted in "Nate Diaz discusses win over Conor McGregor" https://www.youtube.com/watch?v=hg6NkqFPOyY (5 March 2016), UFC on FOX, FOX