Being born and die are unavoidable. A third of men have a long life; a third of men have short lives; another third of men could have long lives, but die by reckless. What is the reason ? It's because they want to live with too much intensity.
However, I learned that those who know how to manage their life fear neither rhinoceros nor tiger on their way. If he engages in army, he does not need a breastplate or weapons.
Rhinoceros would not know where to strike him with its horns, tiger where to tear him with its claws, soldier where to pierce him with his sword.
What is the reason ? He has no mortal weaknesses!