If you can't accept losing, you can't win. Vince Lombardi
Losing has value precisely because winning has value. In all great endeavors—in all great victories and accomplishments—there is a lot of losing.
We always learn more from the losing than the winning.~ Yani Tseng
That’s what learning is, after all; not whether we lose the game, but how we lose and how we’ve changed because of it and what we take away from it that we never had before, to apply to other games. Losing, in a curious way, is winning.
~ Richard David Bach
There are some defeats more triumphant than victories.~ Michel de Montaigne
If you never lose, then you can never appreciate the victories.~ Laura Twitchell
A champion is suppose to hate to lose, and it wasn’t like I was ever crazy about the idea. But I learned to deal with losing without having my spirit or confidence broken, which would help immensely over time, not just in the big picture but even in specific matches when I found myself in a jam. Fear of losing is a terrible thing. ~ Pete Sampras
https://sportpsychquotes.wordpress.com/tag/defeatlosing/
http://www.relaxfocussucceed.com/Articles/2002101415.htm