If you understand that all things change constantly, there is nothing you will hold on to, all things change. If you aren’t afraid of dying, there is nothing you can’t do.
“He who knows other men is discerning; he who knows himself is
intelligent. He who overcomes others is strong; he who overcomes
himself is mighty. He who is satisfied with his lot is rich; he who
goes on acting with energy has a firm will.
He who does not fail in the requirements of his position, continues
long; he who dies and yet does not perish, has longevity.”
----Tao 
