Let’s move to Cheryl Cole [YouTube]:Anything that's worth having
Is sure enough worth fighting for
Quitting's out of the question
When it gets tough, gotta fight some more
The first two lines are acceptable. But the last two, surely, are not. Except in cases of severe duress, which Mrs C is not addressing, quitting can never be out of the question. Sometimes, when it gets tough, quitting is the right thing to do. To think otherwise is to commit the sunk cost fallacy.
It's a genius post of dry wit that made me laugh out loud several times. And the comments are pretty excellent too...