Risk and reward grow on the same tree. If you know yourself and your enemy, victory is assured. If you know yourself but not the enemy, you will suffer a defeat for every victory. If you know neither yourself nor the enemy, defeat is assured. The wisest answer to an insult is silence.
Fear is the salt that seasons the banquet of battle.
Only the wise can see the path between courage and foolishness. Better to tell the painful truth than to lie. Armor is only useful to those who cannot avoid being hit. Patience is the bitter plant with the sweet fruit. Avoid what is strong and strike at what is weak.