I think it's important to have a sense of humor about yourself and not take yourself too seriously.

 The tranquility of the soul is the greatest wealth.

解释：砍伐树木不把树根砍掉，必能重新生长；堵塞水不把源头堵住，必会重新流出；消除祸患不铲除产生祸患的根基，祸患还会再生。