The philosopher Kant said: the so-called freedom is not arbitrary, but self-dominated.

I still remember reading a short story about a great thinker Xu Heng who once went out because of the hot weather and felt thirsty. There happened to be a pear tree on the roadside, which was full of pears, and all the people who accompanied him rushed to pick pears to quench their thirst, but Xu Heng was unmoved. Others advised him to pick pears, but he said, "This is not my own pear. How can I just pick? " Others said, "During the war, people fled everywhere. I'm afraid this pear has long been lost." Xu Heng snapped: "The pear tree has no owner, and my heart has no owner?" The man was ashamed after hearing this.

Xu Heng never picked pears and was indifferent to pear trees without owners. The "master" in Xu Heng's mind is what we often call self-discipline. Only when people have self-discipline can they firmly grasp themselves and successfully dominate themselves.

Italian writer Calvi said: I have no confidence in anything that is easy to get, quick, instinctive, impromptu and ambiguous. I believe in the power of slowness, peace, carefulness, sureness and calmness. I don't believe that individual or collective liberation can be achieved without self-spirit and self-construction and hard work.

There is a famous ballet company in San Francisco, USA. A reporter interviewed the chief ballerina of this company. When the reporter asked her, "What's your favorite food?" At this time, the beautiful ballet dancer happily replied, "ice cream sundae!" " To the reporter's great surprise, this food contains a lot of calories. Eating more will increase weight and affect women's graceful lines. So the reporter continued to ask: "In this case, can you tell us how often you indulge yourself?" The actor replied, "I haven't tasted that smell for at least 15 years." Hearing this, I changed from surprise to admiration and praise.