“If they knock you down, you get up. If they knock you down again, get up. No matter how many times they knock you down, get up again. That is how you should go.”
七転び八起き Nanakorobi yaoki
Literally: Fall seven times and stand up eight.
Meaning: When life knocks you down, stand back up.
Keep trying.
Never give up.
No sword? Use a stick. No stick? Use a rock. No rock? Use your fists and feet! Lose your life, but make the enemy pay!