"Adults" refer to kings and rulers. "Great change" means that the king's characteristic is to change his state like a tiger. Now, great people should change as fast as tigers, be vigorous and vigorous, and have momentum.
"Little people turn over a new leaf" means that if they want to live a good life, they always have to make a new face and make a living. Because he doesn't have that kind of single-minded temperament, he wants to make a living, and he wants to be understood by others, so he must learn to ask for help. Just like sales now, if you want to win the recognition of customers, you have to make a new face, that is, learn to understand and obey other people's emotions, and it is difficult to maintain a kind of self-esteem.
A "gentleman" is close to an "intellectual" and refers to a person with education, education, status and character. So, what does "leopard change" mean? You see, leopards are just born and can hardly be seen. Its hair is sticky and dirty, like a lump of mud. But after growing up slowly, leopards also become beautiful and slender, with good skin, extremely delicate, extremely beautiful and noble. Therefore, "a gentleman's leopard changes" means that a gentleman should change like a leopard, from ugly to beautiful, from young to strong. But also emphasize identity, integrity and elegance. You can't be condescending for the benefit like a villain, nor can you be as powerful as a big man or a king. He should have elegant manners.
The ancients did have a unique understanding of human nature. Even now, these three sentences still make sense. Great people should have the motivation to change, small people should have the ability to adjust their mentality, and gentlemen should keep a conscience. However, with the progress of society, the boundaries of social classes are not so obvious. Great people should have the ordinary side of the masses, and small people should have the upright side. A gentleman should not only keep his conscience, but also have a change that is strong at a critical moment and can sometimes be integrated with the people.