It is not over until it is over. You cannot be disappointed if you don’t plan to stop until the fight is over. You never know how far you can go until you push beyond self imposed limits.

An excellent bit of advice. You should read the whole article (don’t worry, it’s short). (h/t Greg Ellifritz)

It doesn’t matter what it is that you’re dealing with – keep fighting until it’s over.

When will it be over? You’ll know. If you’re not certain it’s over, then keep fighting.

Ignorance, incompetence, mechanical breakdowns, bad weather and enemy action can not be avoided, but you can control your reactions. Confidence in your self and training can keep you calm when others panic. Sometimes the winner is decided by nothing more than who stays on the field.

When you’re dead, you’ll be dead; until then, keep fighting.