The secret to winning is perseverance. Not only must you never give up, you must also create the perception that you will never give up.
The enemy must realize you are slightly insane. He must think you’ll never quit, that you’ll fight to the bitter end even if you know you’ll probably lose.
Business is not like poker. You can’t fold and get another hand. It’s a fight to the end, winner takes all, second is nothing.
If your enemy sniffs that your patience is limited, he’ll wait it out, which will drag out the fight. If he realises you’re in it to the death, he’ll reconsider.
That’s why you should only chase a mission you believe in. The price you pay for victory is too great otherwise.