"Never change a winning game; always change a losing one"

In this quote, Bill Tilden is emphasizing the importance of consistency and flexibility in life. He recommends that when something is working well and bringing success, it is best to stick with it and not make any unnecessary changes. This might use to various elements of life, such as relationships, profession, or individual practices. Nevertheless, Tilden also acknowledges that sometimes things do not go as planned and we may deal with failure or defeat. In these circumstances, he recommends us to be available to change and attempt new methods in order to turn things around. This quote works as a tip to find a balance in between stability and versatility in order to attain success.