“A problem is a chance for you to do your best.”
Source: Music is My Mistress
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Duke Ellington 14
American jazz musician, composer and band leader 1899–1974Related quotes

“The freedom to do your best means nothing unless you are willing to do your best.”

Aaron Henry to Eastland relative to his chances of reelection. 1978
James O. Eastland https://mississippiencyclopedia.org/entries/james-oliver-eastland/
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Clemente's oft-cited "wasting your time on this earth" admonition, but in a context quite distinct from that of its ubiquitous counterpart (which is likewise contained in this speech—see below); from the opening of his Tris Speaker Memorial Award acceptance speech, delivered on January 29, 1971; as quoted in "800 Turn Out for Baseball Dinner" by Joe Heiling (The Houston Post, January 30, 1971, p. 1-B) and "Post Time: Clemente's Catch Proves Point" by Houston Post sports editor Clark Nealon (The Houston Post, June 18, 1971, p. 5-D).
Other, <big><big>1970s</big></big>, <big>1971</big>
Context: I am a very proud person. Baseball has helped send my brothers and nephews to school. But more than that, baseball has become my whole life. Accomplishment is something you cannot buy. If you have a chance and don’t make the most of it, you are wasting your time on this earth. It is not what you do in baseball or sports, but how hard you try. Win or lose, I try my best.

“Put your best people on your biggest opportunities, not your biggest problems. In”
Good to Great: Why Some Companies Make the Leap... and Others Don't
“The problem with temptation is that you may not get another chance.”

Source: The Purpose Driven Life: What on Earth Am I Here for?