This sentence is good. How can a person know what happiness is if he only thinks about what he doesn't have and is full of jealousy and hatred for others? Being able to see what you have and be satisfied with what you have will make you happy.
"The heart is not enough." Although this statement is somewhat exaggerated, we might as well assume that what would happen if the snake really swallowed the elephant? No matter what happens to the elephant, the snake does something beyond its power because of greed, and naturally it will not feel good. If so, why bother?
Isn't it nice to be content? As we are familiar with Tao Yuanming. Because he didn't want to go with the flow, he resolutely abandoned his post after saying "Don't bend over for five buckets of rice". Although not as rich as other officials, he can still live in the country. Enjoy the feeling of "picking chrysanthemums under the east fence and seeing Nanshan leisurely" and taste the realm of "it makes sense inside and wants to distinguish what I forgot to say". He doesn't have everything, but he is satisfied and happy.
So we should learn to be content, but this does not mean that we should always be content, so that we can be enterprising.
Fang Zhongyong was once such a gifted scholar. At the age of five, he was able to write poems. At that time, he was widely known, and his neighbors invited him to be a guest. Fame and fortune, Zhong Yong's father satisfied, Fang Zhongyong also satisfied. Father never wants to send his son to school, and his son never wants to pursue further studies. They are just addicted to numerous praises, unable to extricate themselves. After their talents are "unprecedented", they still don't know how to repent and finally "disappear from everyone". A bright star is dim and shocking.
Edison, on the other hand, changed from a "moron" to a "king of invention", and his motivation came from dissatisfaction. Without an unsatisfied heart, he invented the first product, and stopped after fame and fortune, so there would be no subsequent inventions; Without an unsatisfied heart, he gave up when he failed to study the filament for the first time, and there would be no later birth of the light bulb; If there is no unsatisfied heart, he will be satisfied after gaining certain knowledge, and there will be no subsequent erudition. ...
Obviously, dissatisfaction is very necessary, especially for those who have just made some achievements.
Content and non-content are actually not contradictory. Contentment makes life calm and optimistic; Dissatisfaction turns mediocrity into greatness. Satisfied but not satisfied, you will reach the other side of success!