Food, color, and sex.

Warring States Period, Meng Ke's "Mencius Gaozi 1". Food: Appetite. Color: Sexual desire. The general meaning of this sentence is: Appetite and sexual desire are human nature. Appetite and sexual desire are human physiological needs and cannot be avoided by anyone, so they are said to be human nature. Although sometimes people can suppress and control appetite and sexual desire from their will for higher moral pursuits and career pursuits, this does not mean that people themselves do not have such needs. We can use these two sentences to explain that appetite and sexual desire are human nature. They can also be used to explain that society should create conditions, follow certain principles, and reasonably meet the requirements of human nature. They can also be used to explain people's will. Be strong and be able to suppress and overcome this natural need for the sake of higher morals and ideals.

Everyone in the country says he can be killed.

Warring States Period, Meng Ke's "Mencius, Prince Liang Hui". The main idea of ??this sentence is: Everyone in the country said with one voice that he should be killed. This sentence is mostly used to rebuke and curse those traitors and traitors who have brought serious harm to the country and the people and committed such heinous crimes that the public will not be outraged if they are not killed, as well as those major criminals who seriously threaten the safety of people's lives and property.

House the Qi and nourish the body.

Warring States Period·Meng Ke's "Mencius: Devotion to the Heart". These two sentences of providence are: the environment you live in can change a person's demeanor, and the support you receive can "change a person's constitution." The author believes that living in peace can change a person's temperament of endless struggle, making people lazy and content with the status quo. Don't strive for advancement. Being pampered will make people delicate and unable to withstand the wind and rain. Therefore, people should constantly strive and pursue something, so that they can be energetic and self-improvement. It will also bring certain disadvantages to people. People should be good at taking advantage of the superior conditions and overcome the possible negative effects.