The meaning of these two sentences is: things are unpredictable, and the outcome is hard to tell. People's psychology is unpredictable and some people are arrogant. In this case, it is mainly a feeling of real life, which obviously shows a feeling of being less optimistic about life and reality.
Extended data:
Dogs always look down on the big ones and the tall ones. Therefore, it is not afraid of anything. For example, animals such as mules, horses and cows dare to bite and chase.
In this way, a proverb is formed, which is called "dogs look down on people" and extended to "look down on people and discriminate against them". It's also a curse.
This sentence comes from Eight Immortals Crossing the Ocean. Lu disguised himself as a beggar and went to a big official's house to beg for food. The dog in front of him yelled at him. When he revealed his true identity, the dog immediately lay still, even the immortal dared to bite, let alone other ordinary people!
According to biologists' research, the height that a dog sees an object is shorter than the actual height of the object (the actual height here is the height that a person sees).
However, it does not mean that an object several times larger than a dog can be considered shorter than the dog itself.
A famous saying that satirizes people who look down on dogs.
1, remember, never look down on anyone, the person you look down on today may be the god you can't afford to be taunted tomorrow.
When you look up to anyone, you are not far from success! When you look down on anyone, you are not far from failure!
Don't look down on anyone, because no one is too cowardly to take revenge even if he is insulted.