Know the key things that you want, understand which items you are willing to concede, and know when you are willing to walk away.

FORBES: Don't Let Investor Negotiations Kill Your Startup

You never know anymore when people are ready to walk away.

WSJ: Boston Celtics: Old But Not Over

You know how in most cities when you walk around there are garbage cans that you use to throw away litter?

FORBES: Hey Philadelphia: It's Time To Embrace The Most-Toxic Title

Anyone who hires him will have to take the whole package: a man who questions everything he does, why he's doing it and whether he wouldn't be happier doing something else and one who is honest enough not to commit long-term, because he knows himself well enough to know that when he stops enjoying himself and reaches his threshold, he'll walk away.

WSJ: The End of the Pep Guardiola Era