“Do what you have to do, to do what you want to do.”
Variant: Do what you gotta do so you can do what you wanna do.
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Denzel Washington 8
actor, screenwriter, director, producer 1954Related quotes

“Do you want to be what you are or do you want to be what continually changes what you are?”
2017 Maps of Meaning 11: The Flood and the Tower. https://www.youtube.com/watch?v=T4fjSrVCDvA
Maps of Meaning

“As you cannot do what you want,
Want what you can do”
Source: Dreamsnake (1978), Chapter 9 (p. 205)

“If you can't do what you want, do what you can.”
Vorkosigan Saga, Memory (1996)
Variant: When you can't get what you want, you take what you can get.
Source: Miles Errant

Andy Murray shouted to his coaching team, after running out of idea against Federer at Wimbledon 2015 http://www.telegraph.co.uk/sport/tennis/wimbledon/11733002/Wimbledon-2015-Roger-Federer-destroys-Andy-Murray-with-devilish-serve.html